Question

How to find the focal of the convex mirror
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( PLEASE ANSWER FAST )

Answer 1

Answer:

To find the focal length of the convex mirror,using a convex lens..

1)Principal axis of the lens should be horizontal and parallel to the central line of the optical bench.

2)All the uprights should be vertical.

3)The tip of the needke,centre of the mirror and centre of the lens should be at the same haight.

thanks