Q.

Figure shows a planet in an elliptical orbit around the Sun S. Where is the kinetic energy of the planet maximum?

Question Image

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

P4

b

P1

c

P2

d

P3

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Here, angular momentum is conserved. According to it,I1w1= I2w2

MR12ω1=MR12ω2,R1v1= R2v2

At point P4, the value of R is minimum and hence the velocity is maximum or KE is maximum
 In an elliptical orbit, the principle of conservation of angular momentum plays a crucial role in determining the speed and kinetic energy of a planet. According to this principle, the angular momentum of a planet remains constant throughout its motion around the Sun.

Watch 3-min video & get full concept clarity

hear from our champions

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon