Question

Describe the size, nature and position of the image formed, when an object is placed at

a distance of 15 cm from a concave mirror of focal length 10 cm.​

Answer 1

• by a concave mirror, when an object of size 1 cm is placed at a distance of 15 cm. Given focal length of mirror is 10 cm. ... Since the image in fornt of the concave mirror, its nature will be "Real and Inverted".

Answer 2

Answer:

u=−15cm

f=−10cm

h=1cm

From mirror formula

f

1

=

u

1

+

v

1

v

1

=

f

1

−

u

1

v

1

=

−10

1

−

−15

1

v=−30cm

The image is formed at a distance 30cm on the left side of the mirror from the pole.

m=

h

h

′

=

u

−v

h

′

=−1×

−15

−30

h=−2cm

The image size is 2cm and it is real and inverted.

Explanation:

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