MENU

The height at which the weight of a body becomes 1/16 th, its weight

The Height At Which The Weight Of A Body Becomes Physics Question

The height at which the weight of a body becomes 1/16 th, its weight on the surface of earth (radius R), is

Options

(a) 5 R
(b) 15 R
(c) 3 R
(d) 4 R

Correct Answer:

3 R

Explanation:

Let at h height, the weight of a body becomes 1/16th of its weight on the surface.

Wh = 16 Ws g’ = GM/(Re+h)²

Similarly, g = GM/Re²

Now, g’/g = Re²/(Re+h)²

⇒ g’=g(1+h/R)⁻²

⇒ Wh = 16 Ws

⇒ g’ = g/16 g’

= 16g(1+h/R)⁻² 1/16

= (1+h/R)⁻²

⇒ 4 = 1+h/R

⇒ h = 3 R

Related Questions:

  1. The current flowing through a lamp marked as 50 W and 250 V is
  2. Two metallic spheres of radii 1 cm and 3 cm are given charges of -1 x 10⁻² C
  3. CO₂ laser uses
  4. Two bodies of mass 0.25 kg each moving towards each other with velocity
  5. A body has 80 microcoulomb of charge. Number of additional electrons in it will be

Topics: Gravitation (63)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*