Which mirror is used in solar cooker ?

Which mirror is used in solar cooker ?
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Answer :

Concave mirrors are used in solar cookers.
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Related questions

In which of the following is a concave mirror used? (a) A solar cooker (b) A rear view mirror in vehicles (c) A safety mirror in shopping malls (d) In Viewing full size image of distant tall buildings.

Description : In which of the following is a concave mirror used? (a) A solar cooker (b) A rear view mirror in vehicles (c) A safety mirror in shopping malls (d) In Viewing full size image of distant tall buildings.

Last Answer : Answer : (a)

The group of solar cells joined together in a definite pattern is called a – (1) Battery (2) Solar heater (3) Solar cooker (4) Solar cell panel

Description : The group of solar cells joined together in a definite pattern is called a – (1) Battery (2) Solar heater (3) Solar cooker (4) Solar cell panel

Last Answer : (4) Solar cell panel Explanation: A single solar cell can produce only a small amount of electricity. In those cases where more electrical power is needed, a large number of solar cells are joined ... a solar cell panel consists of a large number of solar cells joined together in a definite pattern.

Which of the following parts of the sunlight makes the solar cooker hot? (1) Ultra violet (2) Red light (3) Infra red (4) Cosmic rays

Description : Which of the following parts of the sunlight makes the solar cooker hot? (1) Ultra violet (2) Red light (3) Infra red (4) Cosmic rays

Last Answer : (3) Infra red Explanation: Glass transmits visible light but blocks infrared thermal radiation from escaping. This amplifies the heat trapping effect. A solar cooker, or solar oven, is a device which ... The vast majority of the solar cookers presently in use are relatively cheap, low-tech devices.

The group of solar cells joined together in a definite pattern is called a (1) Battery (2) Solar heater (3) Solar cooker (4) Solar cell panel

Description : The group of solar cells joined together in a definite pattern is called a (1) Battery (2) Solar heater (3) Solar cooker (4) Solar cell panel

Last Answer : Solar cell panel

Which of the following parts of the sunlight makes the solar cooker hot ? (1) Ultra violet (2) Red light (3) Infra red (4) Cosmic rays

Description : Which of the following parts of the sunlight makes the solar cooker hot ? (1) Ultra violet (2) Red light (3) Infra red (4) Cosmic rays

Last Answer : Infra red

Convex mirror is generally used in - (1) solar cookers (2) opthalmoscope (3) reflector for head light (4) rear view mirror

Description : Convex mirror is generally used in - (1) solar cookers (2) opthalmoscope (3) reflector for head light (4) rear view mirror

Last Answer : (4) rear view mirror Explanation: Rear view mirrors of carsare convex mirrors as they enable the driver to see a wide area of the road behind the car. The convex mirror makes the rays of ... if they were coming from its focus, thereby produdcing a diminished virtual image which the driver can see.

Why a solar cooker painted black form outside? -Science

Description : Why a solar cooker painted black form outside? -Science

Last Answer : Black surface absorbs more heat as compared to white or reflecting surface under identical conditions.

Solar cooker takes more time as compared to the LPG to boil potato or rice, yet Kunal uses solar cooker for such type of cooking: (i) Why does Kunal uses Solar cooker instead of LPG? Give reasons for your answer. (ii) Name the phenomenon which is responsible for obtaining high temperature in solar cooker. -Science

Description : Solar cooker takes more time as compared to the LPG to boil potato or rice, yet Kunal uses solar cooker for such type of cooking: (i) Why does Kunal uses Solar cooker instead of LPG? ... answer. (ii) Name the phenomenon which is responsible for obtaining high temperature in solar cooker. -Science

Last Answer : (a)(i) There are no energy losses while cooking on the solar cooker as the food gets cooked in a controlled environment whereas cooking on the LPG leads to maximum percentage of energy loss. ( ... saves a lot of prestigious time which is normally consumed for cooking purpose. (b) Greenhouse effect.

Mention the purpose of blackening the interior of a solar cooker. -Biology

Description : Mention the purpose of blackening the interior of a solar cooker. -Biology

Last Answer : The purpose of blackening the interior of a solar cooker is that the black surface absorbs more heat radiations of incident solar energy (about 98%) as compare to white or other light coloured surface

How to use a solar cooker?

Description : How to use a solar cooker?

Last Answer : Solar cooker works on the sunlight. Sunlight warms the pot. Which is used for cooking the food. Cocave mirror are used in these types of cookers because these mirrors reflect sunlight into a single focal point ... in a solar cooker:- Rice 45 minutes to one hour,vegetable (about one to two hours) etc

The rice is cooked more quickly in a pressure cooker because – (1) it is covered. (2) less quantity of water is used. (3) None of these (4) water boils at a higher temperature under pressure.

Description : The rice is cooked more quickly in a pressure cooker because – (1) it is covered. (2) less quantity of water is used. (3) None of these (4) water boils at a higher temperature under pressure.

Last Answer : (4) water boils at a higher temperature under pressure. Explanation: The rice can be cooked faster in a pressure cooker since the boiling point of water increases with pressure. In general, the higher the ... of the water in a pressure cooker is higher than temperature of the water in an open pot.

Pressure Cooker cooks faster because (1) boiling point decreases with rise of pressure (2) it cooks the food at low pressure (3) higher temperature is attained for cooking (4) the material of the cooker is a good conductor

Description : Pressure Cooker cooks faster because (1) boiling point decreases with rise of pressure (2) it cooks the food at low pressure (3) higher temperature is attained for cooking (4) the material of the cooker is a good conductor

Last Answer : (3) higher temperature is attained for cooking Explanation: In pressure cooker boiling point of water increases due to high pressure.

In the pressure cooker, cooking is faster because the increase in vapour pressure - (1) increase the specific heat (2) decreases the specific heat (3) decreases the boiling point (4) increases the boiling point

Description : In the pressure cooker, cooking is faster because the increase in vapour pressure - (1) increase the specific heat (2) decreases the specific heat (3) decreases the boiling point (4) increases the boiling point

Last Answer : (4) increases the boiling point

The rice is cooked more quickly in a pressure cooker because (1) it is covered. (2) less quantity of water is used. (3) None of these (4) water boils at a higher temperature under pressure.

Description : The rice is cooked more quickly in a pressure cooker because (1) it is covered. (2) less quantity of water is used. (3) None of these (4) water boils at a higher temperature under pressure.

Last Answer : water boils at a higher temperature under pressure. 

Pressure Cooker cooks faster because (1) boiling point decreases with rise of pressure (2) it cooks the food at low pressure (3) higher temperature is attained for cooking (4) the material of the cooker is a good conductor

Description : Pressure Cooker cooks faster because (1) boiling point decreases with rise of pressure (2) it cooks the food at low pressure (3) higher temperature is attained for cooking (4) the material of the cooker is a good conductor

Last Answer : higher temperature is attained for cooking 

Why concave mirror are used in solar devices?

Description : Why concave mirror are used in solar devices?

Last Answer : concave mirror is a solar device

When you hold a mirror in front of another mirror, do the repeated images that are reflected back go on forever?

Description : When you hold a mirror in front of another mirror, do the repeated images that are reflected back go on forever?

Last Answer : Ha! You’ve received more Great Questions than answers! That’s funny! GQ, by the way To be honest, I’ve wondered this some time in my life. I don’t think I have an answer, but great question! (: I want to try this now!

Why do you need glasses to look in a mirror?

Description : Why do you need glasses to look in a mirror?

Last Answer : Let's say the object you are looking at is 12 feet behind you, and you hold the mirror 1 foot in front of your face. The light path from the object to your eye is 14 feet. You would be ... path would be only 12 feet.The object appears 13 feet behind the mirror, which is 1 foot from your face.

Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: (i) at the centre of curvature of a concave mirror (ii) between the pole P and focus F of a concave mirror (iii) in front of a convex mirror (iv) at 2F of a convex lens (v) in front of a concave lens -Physics

Description : Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: (i) at the centre of curvature of a concave mirror (ii) between the pole P and focus F of ... front of a convex mirror (iv) at 2F of a convex lens (v) in front of a concave lens -Physics

Last Answer : Answer. Nature of image: Real, inverted and same size image is formed at the centre of curvature. Nature of image: Virtual, enlarged and erect image is formed behind the mirror. Nature of image: Virtual ... : Virtual, erect and diminished image is formed between O and F on the same side of object.

Which mirror is used to avoid an accident at a bend in a mountain road ?

Description : Which mirror is used to avoid an accident at a bend in a mountain road ?

Last Answer : Plane mirrors are used to avoid accidents on hilly road bends.

What is the reflection of the mirror used in dental treatment ?

Description : What is the reflection of the mirror used in dental treatment ?

Last Answer : Unreal and magnified reflections are formed in the mirror used for dental treatment.

What is the main focus of spherical mirror ?

Description : What is the main focus of spherical mirror ?

Last Answer : : The point at which the rays of light parallel to the main axis of the spherical mirror meet at the point above the main axis (in the concave mirror) or appear to be moving away from the point above the main axis (in the convex mirror) is called the main focus of the spherical mirror.

What is Gaelic Mirror ?

Description : What is Gaelic Mirror ?

Last Answer : : We have all seen ordinary equal mirrors but we cannot all see the real Gaelic mirror. However, the main point of the Gaelic mirror, but a lot can be seen in the shiny new spoon. ... will be concave or convex galvanized mirror depending on which surface will be coated with silver or aluminum.

Which mirror is used in the head light of a car ?

Description : Which mirror is used in the head light of a car ?

Last Answer : Concave mirrors are used in automobile headlights.

What to do to make the reflection in the mirror real ?

Description : What to do to make the reflection in the mirror real ?

Last Answer : To the right and left of the mirror, two mirrors should be placed at right angles to each other to correct the wrong reflection.

What is a spherical mirror ?

Description : What is a spherical mirror ?

Last Answer : If the reflecting surface is smooth and spherical, that is, if the reflecting surface is a special part of a sphere and there is regular reflection of light in it, then it is called spherical mirror.

What is a mirror ?

Description : What is a mirror ?

Last Answer : The surface on which light is regularly reflected is called a mirror.

What is a convex mirror ?

Description : What is a convex mirror ?

Last Answer : If the regular reflection of light occurs from the convex surface of a spherical mirror, then that mirror is called convex mirror.

What is a mirror ? What is a mirror ?

Description : What is a mirror ? What is a mirror ?

Last Answer : A mirror is a smooth surface where regular reflection occurs according to the rules of reflection of light.

Which mirror is used in street lights ?

Description : Which mirror is used in street lights ?

Last Answer : convex mirrors are used in street lights.

What is the pole of the mirror ?

Last Answer : The center of a spherical mirror from which light is reflected is called the pole of the mirror.

What is a flat mirror ?

Last Answer : The surface of a smooth , flat reflecting surface that reflects light regularly is called a flat mirror.

A convex mirror makes a good rear-view mirror for a car. Why?

Description : A convex mirror makes a good rear-view mirror for a car. Why?

Last Answer : – It forms erect, reduced images

If you look into a mirror and find that the image (your reflexion) is smaller than you, then the type of the mirror is - (1) plano-concave mirror (2) concave mirror (3) plane mirror (4) convex mirror

Description : If you look into a mirror and find that the image (your reflexion) is smaller than you, then the type of the mirror is - (1) plano-concave mirror (2) concave mirror (3) plane mirror (4) convex mirror

Last Answer : (4) convex mirror Explanation: A convex mirror, diverging mirror, or fish eye mirror is a curved mirror in which the reflective surface bulges toward the light source. Such mirrors always form a virtual image and the image is smaller than the object.

Convex mirrors are used as a rear view mirror in motor cycles because (1) it forms real image (2) it forms erect (upright) image (3) it forms smaller image as compared with object (4) All of the above

Description : Convex mirrors are used as a rear view mirror in motor cycles because (1) it forms real image (2) it forms erect (upright) image (3) it forms smaller image as compared with object (4) All of the above

Last Answer : (3) it forms smaller image as compared with object Explanation: It is because image formed by an convex mirror is always virtual, erect and smaller than the object.

The mirror used by ENT specialist is: (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) None of these

Description : The mirror used by ENT specialist is: (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) None of these

Last Answer : (2) Concave mirror Explanation: To see the inner part of ear and other parts, E.N.T doctors use a concave mirror. When the rays of light falls on reflecting surface of concave mirror, that time Concave mirror concentrate those all the rays at its focus.

The centre of the reflecting surface of a spherical mirror is called the : (1) Radius (2) Centre of Curvature (3) Pole (4) Focus

Description : The centre of the reflecting surface of a spherical mirror is called the : (1) Radius (2) Centre of Curvature (3) Pole (4) Focus

Last Answer : (3) Pole Explanation: The center of the reflecting surface of a spherical mirron is called as the pole of the mirror which is mainly known as the center of curvature.

The focal length of a plane mirror is (1) Positive (2) Negative (3) Zero (4) Infinity

Description : The focal length of a plane mirror is (1) Positive (2) Negative (3) Zero (4) Infinity

Last Answer : (4) Infinity Explanation: A plane mirror is a mirror with a flat reflective surface. The focal length of a plane mirror is infinity. Its optical power is zero.

Vehicles use ______ to see the objects coming from behind. (1) Concave lens (2) Convex lens (3) Convex mirror (4) Concave mirror

Description : Vehicles use ______ to see the objects coming from behind. (1) Concave lens (2) Convex lens (3) Convex mirror (4) Concave mirror

Last Answer : (2) Convex lens Explanation: Convex mirror is used in rear view mirror of vehicles; so that the driver can see the traffic coming from behind. The field of view is widest in case of a convex mirror, which enables it to show a wider area from behind.

If the angle of incidence formed on a concave mirror at a point is 30° then the angle of reflection will be: (1) 15° (2) 30° (3) 60° (4) 90°

Description : If the angle of incidence formed on a concave mirror at a point is 30° then the angle of reflection will be: (1) 15° (2) 30° (3) 60° (4) 90°

Last Answer : (2) 30° Explanation: The angle between the incident ray and the normal is known as the angle of inci dence. The angle between the reflected ray and the normal is known as the angle of reflection.

A boy is standing in front of a plane mirror at a distance of 3 m from it. What is the distance between the boy and his image? (1) 3 m (2) 6 m (3) 4.5 m (4) None of these

Description : A boy is standing in front of a plane mirror at a distance of 3 m from it. What is the distance between the boy and his image? (1) 3 m (2) 6 m (3) 4.5 m (4) None of these

Last Answer : (2) 6 m Explanation: The image formed by a plane mirror is always virtual upright, and of the same shape and size as the object it is reflecting. A virtual image is a copy of an object formed at the location from which the light rays appear to come

Shaving mirror is – (1) Convex (2) Concave (3) Plane (4) Parabolic

Description : Shaving mirror is – (1) Convex (2) Concave (3) Plane (4) Parabolic

Last Answer : (2) Concave Explanation: Concave mirrors are used in makeup or shaving mirrors. When shaving or applying makeup, a person holds the mirror close to her face. This allows him to see an enlarged image of him face, which is helpful for applying makeup or shaving correctly.

Which type of mirror is used in the head lights of vehicles? (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) Parabolic mirror

Description : Which type of mirror is used in the head lights of vehicles? (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) Parabolic mirror

Last Answer : (2) Concave mirror Explanation: Car head lights have concave mirrors because it collects and focuses as much as possible of the light from the bulb and send it out as a fairly tight beam in one ... at the focal point. The reflected light is parallel and gives more visibility to the driver at night.

When a light wave is reflected from a mirror, there is a change in its – (1) frequency (2) amplitude (3) wavelength (4) velocity

Description : When a light wave is reflected from a mirror, there is a change in its – (1) frequency (2) amplitude (3) wavelength (4) velocity

Last Answer : (2) amplitude Explanation: When a light wave is reflected from an object, it changes not only its amplitude but also its phase according to the properties of the object at a particular point. The velocity and momentum are just reversed in another direction.

A rear-view mirror for driving is – (1) plain (2) concave (3) convex (4) inverted

Description : A rear-view mirror for driving is – (1) plain (2) concave (3) convex (4) inverted

Last Answer : (3) convex Explanation: The kind of mirror used in the rear-view mirror must be convex mirrors, because it creates smaller, yet still upright images. Concave mirrors would create an inverted image and ... make everything smaller so this allows the driver to see a greater range of things behind him.

The mirror used for the head light of a car is – (1) spherical concave (2) plane (3) cylindrical (4) parabolic concave

Description : The mirror used for the head light of a car is – (1) spherical concave (2) plane (3) cylindrical (4) parabolic concave

Last Answer : (4) parabolic concave Explanation: A parabolic (or paraboloid or paraboloidal) reflector(or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves.

A real image can be formed by which of the following single mirrors? w) a plane mirror x) a concave spherical mirror y) a convex spherical mirror

Description : A real image can be formed by which of the following single mirrors? w) a plane mirror x) a concave spherical mirror y) a convex spherical mirror

Last Answer : ANSWER: X -- A CONCAVE SPHERICAL MIRROR

The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Is the image of this object real or virtual?

Description : The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Is the image of this object real or virtual? 

Last Answer : ANSWER: REAL

To create an enlarged real image using a concave mirror, the object must be placed: w) beyond the center of curvature. x) between the center and the focus. y) at the focus. z) closer than the focus.

Description : To create an enlarged real image using a concave mirror, the object must be placed: w) beyond the center of curvature. x) between the center and the focus. y) at the focus. z) closer than the focus.

Last Answer : ANSWER: X -- BETWEEN THE CENTER AND THE FOCUS.

You want to put up a mirror at a blind corner in a building. Which of the following will give you the largest field of view? Is it a: w) convex mirror x) concave mirror y) cylindrical mirror z) plane mirror

Description : You want to put up a mirror at a blind corner in a building. Which of the following will give you the largest field of view? Is it a: w) convex mirror x) concave mirror y) cylindrical mirror z) plane mirror

Last Answer : ANSWER: W -- CONVEX MIRROR