Published by:
CGP EDU Academic Team
Published on: September 13, 2026
A fish rising vertically upward with a uniform velocity of 8 m s -1 , observes that a bird is diving vertically downward towards the fish with the velocity of 12 m s -1 . If the refractive index of water is 
, then the actual velocity of the diving bird to pick the fish, will be__________m s -1 .
Text Solution
Verified by ExpertsThe correct answer is:
3
(3)
Let the fish be at a depth x from the surface and let the bird be at height y from the surface. So, with respect to fish
y' = 
y + x
Differentiating with respect to time,
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
A particle of mass m is dropped from a height h above the ground. At the same time another particle…
The relation between root mean square speed (v rms ) and most probable speed (v p ) for the molar m…
A tuning fork of frequency 340 Hz resonates in the fundamental mode with an air column of length 12…
A force on an object of mass 100g is . The position of that object at t = 2s is after starting fr…
is a vector quantity such that = nonzero constant. Which of the following expressions is true for…
The distance of the Sun from earth is 1.5 x 10 11 m and its angular diameter is (2000) s when obser…