Question

a converging mirror of focal length 10 centimetre and object placed at a distance of 20 cm find the distance of the image formed and draw the ray diagram​

Answer 1

Answer:v= -6.66cm

Explanation:

f=-10 cm

u=-20 cm

mirror formula = 1/u+1/v=1/f

or,1/v=1/u+1/f

=>1/v=1-20+(1/-10)

=>1/v=-1/20-1/10

=>1/v=-1-2/20

=>-3/20

=>-20/3

=>v=-6.66 cm