Question

an object is placed 8.1 cm away from concave mirror and the focal length is 14.2 cm then find the distance of image​

Answer 1

Answer:

-1.8cm

Explanation:

given that ,

u=8.1cm

f=14.2cm

according to Mirror formula ,1/v+1/u=1/f

putting these value ,1/8.1+1/v=1/14.2

1/v=1/14.2-1/8.1

1/v=-0.53=-1.8

so the distance of image. is ,-1.8cm