Question

II) focal length of the concave mirror is 8cm.the object is placed at 16cm in front of the mirror. write the position of image and it's nature ​

Answer 1

Answer:

16cm

Explanation:

Given,

f= 8cm

u= -16cm

According to lens makers formula,

1/f = 1/v - 1/u

1/8 = 1/v + 1/16

1/8 - 1/16 = 1/v

1/16 = 1/v

Therefore v = 16cm

Answer 2

Given:

Mirror : Concave

Focal length (f) = 8 cm

Distance of the object (u) = 16 cm

To find:

The position of image and it's nature.

Solution:

Formula used: 1/f = 1/u + 1/v

1/(-8) = 1/(-16) + 1/v

1/v = 1/16 - 1/8

1/v = (1 - 2) / 16

1/v = -1/16

v = -16 cm

Therefore image is at a distance of 16cm.

The image is real and inverted.