Question



spherical mirror and thin spherical lens have each a focal length of +20 cm. The mirror and lens are likely to be: ( a) both are concave ( b) both are convex (c) the mirror is concave but the lens is convex (d) the mirror is convex but the lens is concave

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Answer 1

Answer:

A spherical mirror and a thin spherical lens has a focal length of -15 cm. The mirror and the lens are likely to be. Correct Answer: ( BOTH ARE LIKELY TO BE CONCAVE.)

Answer 2

Answer:

the mirror is concave but lense is covex

Explanation:

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