| ⇦ | 
| ⇨ |
If R is the radius of the earth and g is the acceleration due to gravity on the earth surface, the mean density of the earth is
Options
(a) 4πG/3gR
(b) 3πG/4gR
(c) 3g/4πRG
(d)πRg/12G
Correct Answer:
3g/4πRG
Explanation:
Density = Mass/ Volume
= M / (4/3 π R³)
= (gR² / G). x 3/4 (1/π R³) [as g = GM/R²]
= (3/4π G) x (g/R)
=3g/4πRG
Related Questions: - An engine pumps water through a hose pipe. Water passes through the pipe
- In a uniform circular motion, work done in one complete rotation is
- A plumb line is suspended form a ceiling of a car moving with horizontal acceleration
- The young’s modulus of steel is twice that of brass. Two wires of same length
- If 10000 V is applied across an X-ray tube, what will be the ratio of de-Broglie
Question Type: Apply
(15)
Difficulty Level: Easy
(1008)
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An engine pumps water through a hose pipe. Water passes through the pipe
- In a uniform circular motion, work done in one complete rotation is
- A plumb line is suspended form a ceiling of a car moving with horizontal acceleration
- The young’s modulus of steel is twice that of brass. Two wires of same length
- If 10000 V is applied across an X-ray tube, what will be the ratio of de-Broglie
Question Type: Apply (15)
Difficulty Level: Easy (1008)
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.
Share this page with your friends
Leave a Reply