Which of the following statements are true ab | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The variation of acceleration due to gravity $(g)$ is given by:$1$. For $r > R$ (outside the Earth): $g = \frac{GM}{r^2}$. Thus,$g$ decreases as $

Vedclass · Accepted Answer

$(a), (b)$ and $(c)$

Vedclass · Answer

(B) The variation of acceleration due to gravity $(g)$ is given by:$1$. For $r > R$ (outside the Earth): $g = \frac{GM}{r^2}$. Thus,$g$ decreases as $r$ increases.$2$. For $r $3$. At the centre of the Earth $(r = 0)$: $g = 0$.$4$. Effect of rotation: The effective gravity is $g' = g - \omega^2 R \cos^2 \lambda$. If the Earth stops rotating $(\omega = 0)$,then $g' = g$. Since $g$ was previously $g - \omega^2 R \cos^2 \lambda$,the value of $g$ increases (except at the poles where $\cos \lambda = 0$). Therefore,statement $(d)$ is false.Thus,statements $(a), (b),$ and $(c)$ are true.

Similar Questions

If the radius of the earth is $6347 \, km$,then what will be the difference between the acceleration of free fall and the acceleration due to gravity near the earth's surface?

The moon's radius is $1/4$ that of the earth and its mass is $1/80$ times that of the earth. If $g$ represents the acceleration due to gravity on the surface of the earth,then the acceleration due to gravity on the surface of the moon is:

At the surface of a certain planet,acceleration due to gravity is one-quarter of that on earth. If a brass ball is transported to this planet,then which one of the following statements is not correct?

The ratio of the radii of a planet and the earth is $1: 2$, and the ratio of their mean densities is $4: 1$. If the acceleration due to gravity on the surface of the earth is $9.8 \,ms^{-2}$, then the acceleration due to gravity on the surface of the planet is: (in $\,ms^{-2}$)

If the mass of the planet is $10\%$ less than that of the earth and the radius is $20\%$ greater than that of the earth,the acceleration due to gravity on the planet will be

Vedclass Test Series

Exam Paper Generator

Online Exam Module