Question

an object is kept at 80cm in frount of concave mirror of focal length 40cm. find position of object.​

Answer 1

Answer:

v =80 cm ans

Explanation:

u= -80 cm f= 40 cm

1/f = 1/u +1/v

1 /v = 1/f - 1/u ( by mirror formula)

1/v = 1/80 - 1/40 = -1 / 80

v= 80 cm answer