Question

Focal length of spherical mirror is -20cm and an object is placed 30 cm in front of the mirror. The value of position of image is-
-30cm
+20cm
-60cm
+60cm
plz give perfect answer either leave it​

Answer 1

Answer:

The answer is -60 cm

Explanation:

f= -1/20 u= -30

by mirror formula

1//v=1/f-1/u

substituting the values and then taking the LCM

we get the final answer as -60cm

hope it helps you