Question

calculate the image distance when the object is placed between f and C at a distance of 18 cm from a concave mirror having focal length of 10cm and also calculate magnification​

Answer 1

Answer:

Given:

focal length, f = -10cm

object distance , u = -18cm

formula : 1 = 1 + 1

f v u

1/-10 = 1/v + 1/-18

1/-10 - 1/-18 = 1/v

-9 - (-5) = 1/v

90

-4/90 = 1/v

-4v = 90

v = - 22.5cm