If the mass of a body is M on the surface of the Earth, the mass of the same body on the surface of the Moon is

• 6 M

• $\frac{\mathrm{M}}{6}$

• zero

• M

82.

Variation of acceleration due to gravity (g) with distance x from the centre of the Earth is best represented by (R → Radius of the Earth)

• 

• 

• 

• 

The value of acceleration due to gravity at a depth of 1600 km is equal to

• 4.9 ms^-2

• 9.8 ms^-2

• 7.35 ms^-2

• 19.6 ms^-2