Question

A point light source is kept in front of a convex mirror at a distance of 40 cm.The focal length of a mirror is 40 cm.Find the position of image.
PLSE DO IT FAST..IT IS ARGENT..ALSO DW THE IMAGE...​

Answer 1

Answer:

v= 20cm

Explanation:

u= -40cm........... focal length of convex mirror is negative

f= 40cm........... focal length of convex mirror is positive

acc. to mirror formula,

1/v + 1/u = 1/f

1/v = 1/f - 1/u

1/v = 1/40 - (- 1/40)

1/v = 1/40 + 1/40

1/v = 2/40

1/v = 1/20

v = 20 cm

Answer 2

=> your answer is v = 20 cm

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