Question

An object of height 4 cm is placed before a converging mirror having focal length 5 cm at a distance of 15 cm. Find the position sides and the nature of the image forms . Draw a ray diagram for this case.
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Answer 1

Explanation:

HEY MATE ..

ANSWER

ANSWERMagnification m= u /−v

−4= −20 /−v

−v

−v v=−80cm

−v v=−80cmFrom mirror formula

−v v=−80cmFrom mirror formulav /1 + u /1 = f / 1

−80 /1 + −20 /1 = f / 1

1

1 f /1 = −80 / 1+4

1+4f=−16cm

1+4f=−16cmThus focal length of converging mirror is 16 cm.