Question

an object of height 5cm is placed in the front of a lens find the position,size and nature of the image if lens is- (a) convex lens of focal length 15 cm. (b) a concave lens of focal length 10 cm . distance of object and lens is 10cm​

Answer 1

Answer:

1

=5cm

u=−10cm

f=6cm

v

1

−

u

1

=

f

1

v

1

−

−10

1

=

6

1

v

1

=

6

1

−

10

1

=

30

2

=

15

1

v=15cm

Image is formed 15cm behind the convex lens and it is real and inverted .

Explanation:

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