1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# A point object is kept near a plane mirror. The mirror starts moving away from the object with a speed of 4cm/s. The velocity of the image is

A
8cm/s,towards the object
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
8cm/s,away from the object
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
4cm/s,towards the object
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
4cm/s,away from the object
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

## The correct option is B 8cm/s,away from the objectWe know, the velocity of the image is twice in magnitude as that of the mirror and in the same direction. Mathematically, →vi=2→vmWe have,→vm=4cm/s,away from the object.Hence,→vi=8cm/s,away from the object.

Suggest Corrections
1
Join BYJU'S Learning Program
Related Videos
Moving Object and Mirror
PHYSICS
Watch in App
Join BYJU'S Learning Program