The outer surface of hollow sphere of aluminium of radius 50cm is to be used as mirror. what will be the focal length of this mirror? which type of spherical mirror will it provide
Answers
Answered by
10
Answer:
convex mirror
focal length =25cm
Explanation:
f =R/2 (where f is focal length and R is radius of curvature. )
=50/2
=25
Since the mirror is bulged outerward , it is a convex mirror.
TRICK:
Imagine a C shape . In this, the inward curve is like a cave ; so the mirror curved inward is like a cave is a concave mirror. The other mirror not curved inward but outward is a convex mirror.
Similar trick can be used for lenses.
You can ask me if you need to .
Answered by
1
Answer:
Explanation:
f = R/2 = 25 cm
It will form a convex mirror as the focal length is positive
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