Question

An object is placed at a distcance of 50cm in front of a concave mirror of
focal length 25cm. Find the image distance. If the object is 10cm high what
will be the nature and size of the image ?​

Answer 1

Answer:

u = -50 cm

f = -25 cm

h = 10 cm

v = ?

m = ?

Explanation:

use mirror formula:

1/v + 1/u = 1/f

1/v = 1/f - 1/ u

= 1/-25 - 1/-50

= 1/-25 + 1/50

= -2+1/50

1/v = -1/50

v = -50 cm

image distance = 50 cm

m = -v/u

= -(-50)/-50

= -1

therefore,the image is real,inverted and same size as the object.