Question

An object is placed at a distance of 20cm in front of a convex mirror with focal length 20cm. its image distance is...( )
A)Less than 10
B)Greater than 10
C)Equal to 10
D)Equal to 20​

Answer 1

Answer:

Given, f=20cm,u=−20cm,v=?

As,

f

1

=

v

1

+

u

1

v

1

=

f

1

−

u

1

v

1

=

20

1

+

20

1

v

1

=

20

2

v=10cm

So, the distance of the image from the pole of the mirror is 10cm.

hope it's will help you

Answer 2

Answer:

An object is placed at a distance of 20cm in front of a convex mirror with focal length 20cm. its image distance is...( )

ans:- option c) Equal to 10

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