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Question
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
- What will be the focal length of this mirror?
- Which type of spherical mirror will it provide?
- State whether this spherical mirror will diverge or converge light rays.
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Solution
a. Given: Radius (r) = 50 cm
f = `r/2`
f = `50/2`
f = 25 cm
b. The convex mirror is the spherical mirror provided by it.
c. It will diverge light rays.
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