Question

When an object is placed at a distance of 15 cm from a concave mirror, its image is formed at 10 cm in front of the mirror. Calculate the radius of curvature of the mirror​

Answer 1

Hi!

Here's ur answer..

Given -

Object distance = u = -15cm

Image distance = v = -10cm

( Both Image and object is in front of mirror.. Therefore it's negative)

Radius of curvature = ?

= 2×focal length

➡ 1/f = 1/v + 1/u

= -1/15 + (-1/10)

= (-10-15)/ 150

= -25/150

= -1/6

➡ 1/f = -1/6

➡ f = -6

Radius of curvature = 2f = 2(-6) = -12cm

Hope it helps u!

Answer 2

Step-by-step explanation:

Hi!

Here's ur answer..

Given -

Object distance = u = -15cm

Image distance = v = -10cm

( Both Image and object is in front of mirror.. Therefore it's negative)

Radius of curvature = ?

= 2×focal length

➡ 1/f = 1/v + 1/u

= -1/15 + (-1/10)

= (-10-15)/ 150

= -25/150

= -1/6

➡ 1/f = -1/6

➡ f = -6

Radius of curvature = 2f = 2(-6) = -12cm

Hope it helps u!