Question

An object of 6cm height is kept at a distance of 20cm in front of convex mirror of focal length 15cm. Find the position of image, nature of image and size of the image and draw ray diagram?

Answer 1

Answer:

It is to be remembered that a convex mirror always forms the virtual, erect and diminished image.

Given: Object distance, u=−10cm Focal length, f=15cm

To find: Image distance, v

From mirror formula :

v

1

+

u

1

=

f

1

v

1

−

10

1

=

15

1

v

1

=

15

1

+

10

1

=

150

25

v=6cm

Hence image will be formed 6 cm beyond the mirror, i.e virtual magnification

m=

u

−v

=

−10

−6

=0.6

Hence it will be erect and diminished.

Answer 2

Answer:

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Explanation:

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