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why does the ...

Question

why does the torch have a concave surface?

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Solution

A torch has a concave reflecting surface because when light from bulb of the torch falls on this surface, it has ability to reflect the light in straight for long distance.

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Answer the following questions.

a. Explain the difference between a plane mirror, a concave mirror and a convex mirror with respect to the type and size of the images produced.

b. Describe the positions of the source of light with respect to a concave mirror in
1.Torch light

2. Projector lamp
3. Flood light

c. Why are concave mirrors used in solar devices?

d. Why are the mirrors fitted on the outside of cars convex?

e. Why does obtaining the image of the sun on a paper with the help of a concave mirror burn the paper?

f. If a spherical mirror breaks, what type of mirrors are the individual pieces?

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