Gravitation Tes...

The value of $$'g'$$ at a certain height above the surface of the earth is $$16$$% of its value on the surface. The height is $$(R = 6300 \ km)$$

The depth at which the value of acceleration due to gravity $$\dfrac {1}{n}$$ times the value at the surface is: ($$R=$$radius of the earth).

A pendulum that beats seconds on the surface of the earth were taken to a depth of (1/4)th the radius of the earth.What will be its time period of oscillation? 

A body weight 144 N at the surface of earth. When it is taken to a height of h = 3R,where R is radius of earth it would weight.

When work done by of gravity is negative, which of the following will definitely occur 

Two planets are at mean distance $$d_1$$ and $$d_2$$ from the sun and their periods are $$T_1$$ and $$T_2$$ respectively, Then:

If a tunnel is dug along the diameter of the earth and a body is dropped into it, then the time taken by it to cross the tunnel once is:-

The value of acceleration due to gravity at a height R from surface of the earth is then(R=radius of the earth and g=acceleration due to gravity on earth surface )

The value of gravitational acceleration at a height equal to the radius of the earth is 

At what height from the surface of the earth will the value of acceleration due to gravity be reduced by $$36\%$$ from the value at the surface?
(Radius of earth=$$6400\ km$$)