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HomePhysicsIf the value of ‘g’ acceleration due to gravity, at earth surface is 10 m/s2 , its value in  m/s2  at the centre of the earth, which is assumed to be a sphere of radius ‘R’ metre and uniform mass density is

If the value of ‘g’ acceleration due to gravity, at earth surface is 10 m/s2 , its value in  m/s2  at the centre of the earth, which is assumed to be a sphere of radius ‘R’ metre and uniform mass density is

(a)  5                                         (b)  10/R

(c)   10/2R                                (d)  Zero

Answer: d

(16)

5/5 - (1 vote)

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12. An ideal gas is taken through the cycle A→ B → C → A, as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process C → A is

(a)      – 5 J (b)  – 10 J (c)   – 15 J (d)  – 20 J Answer-a (126)

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