Question

If the radius of curvature of the convex mirror is $30cm,$ find the focal length.

Answer 1

Step 1: Given data

Radius of curvature of convex mirror $R=30cm$

Step 2: Formula used

$R=2f$

Where, $f$is focal length.

Step 3: Calculating the focal length

Using the formula $R=2f$

$30cm=2f$

$f=15cm$

Hence, the focal length is $15cm.$