Question

An object is placed at a distance of 4cm from a concave mirror of focal length 1cm.find the position and nature of image​

Answer 1

Answer: Position of the image is 1.33m from the mirror. Its magnification is +0.33 i. e it is a real and inverted image

Answer 2

Explanation:

1/v + 1/u = 1/f

v=?

u= 4cm = -4

f= 1cm = -1

1/v = 1/u - 1/f

= 1/-4 - 1/-1

= 1/-4 + 1

= 1 + 4 / -4

= 5/-4

v = -4/5 = -0.8