The optical design is a two-stage off-axis configuration which uses a flat 52 m{sup 2} heliostat and a concentrator composed of 147 spherical mirror facets. (c) Solar furnace. Concentrated solar power isn't new, but high heat can be used . Large concave mirrors are used in solar furnaces as reflectors. And in night we want highly concentrated light beam for clear visibility. Name the type of mirror used in the following situations. Ans: The two uses of the concave mirror are: Concave mirrors are used in solar furnaces and telescopes. Name the type of mirror used (i) by dentists and (ii) in solar furnaces. Name the type of mirror used in the following situations. A convex mirror is a spherical reflecting surface that bulges towards the source of light.Convex mirror is also known as a curved mirror.. Used as a head mirror. concave mirrorrs are used in solar furnaces to concentrate a large amount of heat The shape of concave mirrors catches and directs the sun light inward which provides greater heat retention. The various parameters affecting the performance, efficiency, and achievable temperature have also been discussed. Questions No-8. (c) Solar furnace The solar furnace is placed at the focus of the large concave reflector. Convex mirrors are used as rear-view (wing) mirrors in vehicles. The solar furnace technique is based on reflecting solar radiation from a surface and concentrating it all in a single point. Q 8. When the light gets reflected off its surface, the mirror diverges the light. (a) Headlight of a car: (b) Side/rear-view mirror of a vehicle . (2013, 2016 OD) Answer: . Answer: Concave mirrors are used in the designing of solar furnaces. This 50 m 2 reflector will generate temperatures of 700°C (1292°F) and displace 200-300 kg of firewood used . (c) Solar furnace. Concave mirror is used in the headlights of a car. When parallel rays of light from the sun fall on the surface of the concave mirror, rays gets reflected and meet at the focus of the mirror due to the converging nature of concave mirror. (a) Headlights of a car. The concave reflector focuses the Sun's heat rays on the furnace and the high temperature is achieved. The solar furnace is placed at the focus of the large concave mirror called a reflector. Concave mirrors are used in solar furnaces because concave mirrors are the only type of mirror that reflects light toward a single focal point. The concave mirrors are converging mirrors. They converges light incident on them at a single point known as principal focus. Concave mirror is used in a solar furnace. Name the type of mirror used in the following situations. It also gives a wider view. Support your answer with reason. Uses of convex mirror include divergence of light beams, as in rearview mirrors, magnifying glasses, and inside buildings. The concave mirror would be used in a solar furnace to concentrate the incident rays from the sun on a solar panel. Ans: A Concave mirror is used in the solar cooker since it absorbs the sunlight and produces heat energy. In 1993,the solar furnace was used for industrial and manufactured products such as the firing of ceramics, and bronze and aluminum products. At this point, all the Infra Red radiation that has hit them (and been reflected by the mirror's . Answer. Name the type of mirror used in the following situations. The solar furnace in Mont Louis [5] 8. Give two reasons why such mirrors are used in each case. (Photo 2) The fan pushes cold air into the input port on the bottom. (a) Headlights of a car. (a) Headlight of a car. 3. The concave reflector focuses the Sun's heat rays on the furnace . Solar Furnace: Applications, and the Type of Mirror Used. (a) Headlights of a car. . . This technique's primary use is in thermal solar energy, but you can also see photovoltaics (PV) uses. Let's crack it Here you will get answers to every question asked by CBSE in the examination. This helps to increase the temperature of the furnace. Name the type of mirror used in the following situations. Answer: Concave mirrors. Solar furnace: Concave mirror Concave mirror has the property to concentrate the sunlight coming from sun along with heat radiation at its focus. Name the type of mirror used in the following situations: (a) Headlights of a car (b) Side/rear-view mirror of a vehicle. History of Solar furnaces cont'd The solar furnace in Mont Louis, France, built in 1949 by Professor Félix Trombe, was the first solar furnace in the world. 14. Explanation: Concave mirrors are used in solar furnaces because it focuses sun's rays on the furnaces, os that the temperature of furnace increases high through concave mirrors. Q.3: Which mirror is used in . Headlight, side/rearview mirror of a vehicle and solar furnace Answer 1) concave mirror 2) convex mirror 3) concave mirror Explanation A) concave mirror is used in the headlights of a car. When a solar furnace is placed at the focus of a large concave mirror, it focuses a parallel beam of light on the furnace. (b) Side/rear-view mirror of a vehicle. Question 10. This allows the heating system to achieve a higher temperature and be better suited to heat your entire home. Previous Question Next Question Popular Questions of Class 10 Science Q:- It converges the incident light on them at a single point known as principal focus. a) Headlights of car: Type of mirror used is concave as the light of lamp undergoes divergence from reflector surface and cover large area in the front. Name the type of mirror used in the following situations: (i) Headlights of a car (ii) Rear-view mirror of vehicles (iii) Solar furnace. Solar furnace: Concave mirror is used in the solar furnace because it is a converging mirror and can reflect all the rays at focus. Solar furnaces; Used in shaving mirrors . Answer : (a) Concave (b) Convex (c) Concave Explanation (a) Concave mirror is used in the headlights of a car. (a) Headlights of a car. Name the type of mirror used in the following situations: (i) Headlights of a car (ii) Rear-view mirror of vehicles (iii) Solar furnace Support your . As a result, the temperature at its focus increases and the substance placed at . You can send your comments directly at info@mechanicaltutorial.com. As a result, temperature at its focus increases . Give two reasons why such mirrors are used in each case. Q9. Solar Furnace in Tashkent Region. (a) Headlights of a car. It uses parallel rays of sun to obtain this high temperature. Its operation works on exploiting the sun rays' reflection in a large area through reflective surfaces. (b) Side/rear-view mirror of a vehicle. Name the type of mirror used in the following situations. The concave reflector focus the Sim's heat rays on the furnace and a high temperature is achieved. Hence, they can be used to produce a large amount of heat at that point. Dentists use concave mirror to see large images of the teeth of patients. (Photo 1) Solar furnace mounted on an external door. 67. Answers (1) S Sayak The concave mirror would be used in a solar furnace to concentrate the incident rays from the sun on a solar panel. In 1993,the solar furnace was used for industrial and manufactured products such as the firing of ceramics, and bronze and aluminum products. Reflecting mirrors used for exploiting solar energy are called... A. Mantle B. Ponds C. Diffusers D. Heliostats Question 32. Explanation: please make me as a brainliest. Explanation: Another name for a concave mirror is a converging mirror, which pretty much sums up their purpose: point all the light that hits them on a singe point (the bit where all they rays actually cross each other is called the focal point). One such method is the use of Solar Furnace for reaching temperatures up to 3,5000 C. In this review paper, a brief overview of different types of solar furnace and their main components have been described. Concave mirrors are used for the design of solar furnaces because they are converging mirrors. (iii) Solar furnace: Concave mirror Concave mirror has the property to concentrate the sunlight coming from sun along with heat radiation at its focus. The solar concentrator ( 100) may be used to increase the temperature of a substance such as metal, for use in a variety of applications including the melting of metals in a foundry furnace. Support your answer with reason. 8. Best answer Concave mirrors are used in the design of solar furnaces. In cars, the rear-view mirror is usually affixed to the top of the windshield on a double-swivel mount allowing it to be adjusted to suit the height and viewing angle of any driver and to swing harmlessly . oncave mirror is used in a solar furnace. c) Solar furnace. A prototype Scheffler reflector is being constructed in India for use in a solar crematorium. 7. (a) In headlights of a car, type of mirror used is concave as the light of the lamp, under goes divergence from reflector surface and cover a large area in the front. . Convex mirrors are used as a rearview mirror in cars because it produces an erect and diminished image of the traffic behind the vehicle. (c) Solar furnace. Temperature can reach upto 3500oC. Name the type of mirror used in solar furnaces. The Power Of The Sun. In solar furnace concave mirror is used as a reflector, it concentrates sun light at a point where the temperature increases sharply to 180°C 200°C. Solar furnace: Concave mirror Concave mirror has the property to concentrate the sunlight coming from sun along with heat radiation at its focus. The solar cells used in solar panel are used to convert solar energy into; A reflector used in solar power plant to reflect sunlight is; The use of reflector in solar heating devices is to; In solar furnace temperature can be raised upto; A mirror used to reflect sublight in box type solar cooker is; Solar pond is used to (a) Headlights of a (b) Side/rear-view mirror of a (c) Solar furnace Support your answer with reason. Question 33. This is because these mirrors send the reflected light as a parallel beam of light to illuminate the road. Convex Mirror is a curved mirror where the reflecting surface protrudes into the source of light. Name the type of mirror used in the following situations. Q.6 (a) Draw a ray diagram to show the formation of the image of an object placed between infinity and the optical center of a concave lens. a concave mirror, also known as a converging mirror is used in a solar furnace because when the solar furnace is placed at the focus of a large concave reflector, it gathers a large number of parallel light rays coming from the sun, and converges it at the focus of the mirror due to which the furnace kept at the focus becomes very hot and helps … The Bill Gates-backed startup Heliogen has generated solar heat topping 1,000 degrees Celsius using mirrors. When a solar furnace is placed at the focus of a large concave mirror (called reflector), it focuses a parallel beam of light on the furnace, as a result a temperature is achieved after some time. Name the type of mirror used in the following situations. The temperature at the focal point can be used to produce electricity, melt steel, hydrogen or nanomaterials. Answer: 1. (CBSE 2013) Answer: Concave mirror. Name the type of mirror used in the following situation. Side/rear-view mirror of a vehicle. (b) Side/rear-view mirror of a vehicle. Support your answer with reason. Concave mirrors are used in solar cookers. Headlights of a car. Name the type of mirror used in the following situations: (i) Headlights of a car (ii) Rear-view mirror of vehicles (iii) Solar furnace Support your answer with reason. Find more answers Ask your question New questions in Biology Q2. This coating reflects light outwards and is not intended to absorb light. A converging mirror would be the best choice for the construction of curved surfaces. (c) Solar furnace. 8. (c) Solar furnace. Solution Verified by Toppr Correct option is A) A concave mirror is used in the design of solar furnaces because they converge the parallel sun rays at a point. also uses concave mirrors. A type of solar reflector used in solar furnace; An instrument used for measuring the solar radiation is; A reflector used in solar power plant to reflect sunlight is; A mirror used to reflect sublight in box type solar cooker is; The temperature inside the solar cooker ranges from; The solar radiation received directly from the sun is; The use . A convex mirror enables driver to view much . Answer: (a) Concave mirror Recent Posts ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 7 Decimals Objective Type Questions This reflected light is very powerful because it carries a lot of thermal energy. Solution. Heliogen. Temperature can reach upto 3500 oC. This helps to increase the temperature of the furnace. (b) Side/rear-view mirror of a vehicle. Diminished - Hence, the image produced is much smaller than the actual size of the object. So, a concave mirror is used in a solar furnace. A concave mirror is used in the design of solar furnaces because they converge the parallel sun rays at a point. Warm air exits from the output port on the top. Answer : (a) For headlight of a car— Concave mirror is used to get a powerful beam of light after reflection. An object 5 cm high is held 25 cm away from a converging lens of focal length 10 cm. Support your answer with reason. Name the type of mirrors used in the design of solar furnaces. Here's how to build one yourself. As a result, temperature at its focus increases . Which kind of mirrors are used in the head lights of a motor-car and why ? The solar furnace is placed at the focus of a large concave reflector. The solar concentrating system (100) comprises at least two single-curved parabolic mirrors (10, 20) connected in an operable arrangement. This heat energy is used in the solar cooker to cook the food. Name the type of mirror used in solar furnace. The temperature at the focal point can be used to produce electricity, melt steel, hydrogen or nanomaterials. The temperature at focus increases at . Name the type of mirror used in the following situations: (i) Headlights of a car (ii) Rear-view mirror of vehicles (iii) Solar furnace Support your . Answer: (a) Headlight of a car: Concave mirror is used in head lights of a car to get a powerful parallel beams of light. Hence they convert solar energy into heat energy Questions Question 4 Page 168 - Why do we prefer a convex mirror as a rear-view mirror in vehicles? Solar furnace- concave mirror to concentrate sunlight to produce heat in solar furnace. A concave mirror is used in solar cooker because it converges light rays coming from infinity to a point so that more heat is produced at the point sufficient to cook the food. (CBSE 2012) Answer: Concave mirror is used in solar furnace. An object is placed at a distance of 10 cm from a convex mirror of focal . Question 9. Q.5 Name the type of mirror used in the following situations: 2M (i) Headlights of a car (ii) Rear-view mirror of vehicles (iii) Solar furnace Support your answer with reason. The solar furnace is placed at the focus of the large concave reflector. Complete step by step answer: A solar furnace is a structure used to concentrate solar power to a particular point and to obtain high temperatures at that particular point. A rear-view mirror (or rearview mirror) is a flat mirror in automobiles and other vehicles, designed to allow the driver to see rearward through the vehicle's rear window (rear windshield).. Similar Questions An Unbiased coin is tossed 4 times. So sun's rays can be concentrated at a single point to produce heat in solar furnace. Solar furnace is placed at the focus of the concave reflector which focusses the Sun's heat rays on the furnace due to . The solar furnace project was founded by the government of the State Northrhine Westfalia within the Study Group AG Solar. Question. Name the type of mirror used in the following situations: (i) Headlights of a car (ii) Rear-view mirror of vehicles (iii) Solar furnace; Support your answer with reason. Thus, a high temperature is achieved after a few minutes. Answer: (a) For head lights of a car, we use a concave mirror. Support your answer with reason. Name the type of mirrors used in the design of solar furnaces explain how high temperature is achieved by this device - Science - Light - Reflection and Refraction. The cooking pot is placed on the focal point where the light . (b) Side/rear-view mirror of a vehicle. Concave mirror is used in a solar furnace. It is used in shaving mirrors to see large image of the face. Solar furnace: - A concave mirror is used in solar furnace because concave mirror is a convergent mirror. (b) Side/rear-view mirror of a vehicle (c) Solar furnace. The solar furnace principle is being used to make inexpensive solar cookers and solar-powered barbecues, and for solar water pasteurisation. Support your answer with reason. This solar furnace can heat up your room from 10 degrees Celsius to 29. 2020-2021 cbse chapter 10 class10 light - reflection and refraction ncert science. Name the type of mirror used in the following situations. . 9. As a result . Large concave mirrors are used to concentrate sunlight to produce heat in solar furnace. b) Solar/rear view of vehicle: It is a convex mirror as it gives diminished, virtual and an erect image of the side or rear with wider field of view. Headlights of a car Side/rear-view mirror of a vehicle Solar furnace Support your answer with reason. (a) Headlights of a car. Some solar thermal power plants use this technique to heat a working fluid. 4. The Power Of The Sun. Convex mirror uses are in places where big objects are . The solar furnace is kept practically at the focal point of the broad concave reflector. Concave mirrors are converging mirrors. This helps in providing a wider field of view . Explain how high temperature is achieved by this device. Due to its reflective and curved surface, concave mirrors are most commonly used in the shaving. (Figure 2) Schematic. The solar furnace is placed at focus of the large concave reflector. Question: 14. Concave mirrors are used in the design of 'solar furnaces'. When a solar furnace is placed at the focus of a large concave mirror, it focuses a parallel beam of light on the furnace. Parabolic mirrors or heliostats concentrate light onto a focal point.The temperature at the focal point may reach 3,500 °C (6,330 °F), and this heat can be used to generate electricity, melt steel, make hydrogen fuel or nanomaterials. It is a crucial element in concentrated solar power ( CSP energy ). Name the type of mirror used (i) by dentists and (ii) in solar furnaces. Give two reasons why such mirrors are used in each case. Solve any question of Work, Energy and Power with:- Patterns of problems > How is high temperature achieved by this device? A solar concentrator is a system for concentrating solar energy. . The specialist E.N.T. The reasons for using a concave mirror in solar cookers are given below: Concave mirrors absorb all the incident light and reflect it to a single focal point. Name the type of mirror used in the following situations. Ans :(a) concave mirror: as it produce powerful beam of parallel rays that converge at infinity (c) Solar furnace. Ans. (b) Convex mirror is used for side/rear view mirror of a vehicle. (c) Solar furnace. Draw the ray diagrams and find the position, size and the nature of the image formed. (b) Side/rear-view mirror of a vehicle. Solar ovens use a curved mirror or series of mirrors that act as a parabolic reflector to bring light into focus, which can reach temperatures of up to 3500 degrees Celsius (63330 degrees Fahrenheit). Its unique complexities and the fun activities now . A solar furnace is an optical system for providing concentrated solar radiation. Support your answer with reason. Solar furnace. That is why they are used to construct solar furnaces. 2. Q.2: What are 2 uses of concave mirrors? The solar furnace in Mont Louis [5] Therefore, it enables the driver to see a wider field of view and traffic behind the vehicle in a small mirror. The light source is held at the focus of the mirror. Solar furnace: Concave mirror Concave mirror has the property to concentrate the sunlight coming from sun along with heat radiation at its focus. This is because, a concave mirror produces a powerful parallel beam of light when the light source is placed at the . Name the type of mirror used (i) by dentists and (ii) in solar furnaces. This is why concave mirror is used. View Answer NCERT Question 8 - Name the type of mirror used in the following situations. [3] Answer: Concave mirrors are used by dentists to see the large images of the teeth of patients because when a tooth is within the focus of a concave mirror, then an enlarged image of the tooth is . 9681. Question 15. 3. Support your answer with reason. Concave mirror has converging power, it can concentrate the light ray at a particular point. Nov 19, 2019. Similar Questions P: Resistance of a conductor depends on its length Q. Advertisement Still have questions? When the mirror is held nearer to the face, the concave mirror forms an enlarged and erect image of the face during the shaving. Solar ovens use a curved mirror or series of mirrors that act as a parabolic reflector to bring light into focus, which can reach temperatures of up to 3500 degrees Celsius (63330 degrees Fahrenheit). ← Prev Question Next Question → Find MCQs & Mock Test Free JEE Main Mock Test A convex mirror is used as a rear-view mirror because the image provided by a convex mirror is Erect - Hence, the image produced to the driver is not inverted, it's right side is up. . A solar furnace is a structure that uses concentrated solar power to produce high temperatures, usually for industry. Similar Questions P: Resistance of a conductor depends on its length Q. Support your answer with reason. Name the type of mirror used in the following situations. Solar Furnace in Tashkent Region is the brightest and most unusual sight in the vicinity. Expert Answer: Concave mirror are used in car headlamp. They focus the parallel sun rays at a single point called the focus. A gigantic 54-meter-high solar oven with a parabolic mirror, it can concentrate the sun's rays at one point and create temperatures over 3000° C in a matter of seconds. History of Solar furnaces cont'd The solar furnace in Mont Louis, France, built in 1949 by Professor Félix Trombe, was the first solar furnace in the world. Uses of convex mirrors. One-half of a convex lens is covered with a black paper.
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