Question

An object is kept 20 cm in front of a converging mirror of focal length 10cm. Find the position and nature of the image.
b) Draw a ray diagram to show the formation of image in this case.

Answer 1

Step-by-step explanation:

u = -20cm

f = -10cm

for position:-

1/v+1/u= 1/f

1/v=1/f-1/u

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

= -1/10+1/20

= -2/20+1/20

= -1/20

1/V = -1/20

V= -20

the image -20 cm from the mirror.

m= h'/h = -v/u

-(-20)/-20

= -1cm

so, the image is real and inverted.