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Light Reflection and Refraction
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12/08/2021 2:03 pm
Topic starter
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror :
(a) What will be the focal length of this mirror?
(b) Which type of spherical mirror will it provide?
(c) State whether this spherical mirror will diverge or converge light rays.
1 Answer
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12/08/2021 2:05 pm
(a) R = 50 cm
f = ?
We know that
f = \(\frac{R}{2}\) = \(\frac{50}{2}\)
= 25 cm
(b) Convex mirror
(c) It will diverge light rays.