A point object is moving at a constant speed of 
along the principal axis of a conver lens of focal length 
. The speed of the image is also 
, when the object is at 
from the optic centre of the lens.
Text Solution
Verified by ExpertsThe correct answer is:
C
: Velocity of image w.r.t. lens along the principal axis is given by,
or 
as 
or 
Using lens formula, 
or 
From eqn (i), we have
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The twinkling effect of star light is due to
A transparent cube of edge contains a small air bubble. Its apparent distance when viewed through …
White light is incident on one of the refracting surfaces of a prism of angle . If the refractive …
For a given lens, the magnification was found to be twice as large as when the object was distant …
To a fish under water, viewing obliquely a fisherman standing on the bank of a lake, the man looks
A ray of light is travelling from glass to air. (Refractive index of glass ). The angle of inciden…