Question

An object is located 30cm in front of a
concave mirror of focal length 15cm. Find the position of the image and its
magnification. What is the nature of the image?​

Answer 1

Answer:

position of image = -30cm

magnification= 1

nature = real and inverted

Explanation:

for concave mirror

1/f = 1/v + 1/u

f= focal length of mirror

v = distance of image

u = distance of object

f = negative

u = negative

-1/f = 1/v -(-1)/u

1/u-1/f = 1/v

1/30 -1/15 =1/v

1-2/30 =1/v

-1/30= 1/v

v = -30

magnification = -(v)/u

= -(-30)/30

= 1

since v is negative

so nature of image will be real and inverted