Physics Circle home Student Login

Home›Chapters›Gravitation PYQs›Gravitational Potential & Energy›Question 23

NEET 2019 · Gravitational Potential & Energy

Gravitational Potential & Energy question from NEET 2019

Q23NEET 2019Easy

Gravitational Potential & Energy

The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is:

Show answer and solution

Answer: (c)

  1. W=mgh1+hRW = \frac{mgh}{1+\frac{h}{R}}
  2. With h=Rh = R: W=mgR2W = \frac{mgR}{2}
  3. So the answer is (c) 12mgR\frac{1}{2}mgR.
Report a mistake

More questions on Gravitational Potential & Energy