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HomePhysicsIf the radius and acceleration due to gravity both are doubled, escape velocity of earth will become

If the radius and acceleration due to gravity both are doubled, escape velocity of earth will become

(a)      11.2 km/s                         (b)  22.4 km/s

(c)   5.6 km/s                            (d)  44.8 km/s

Answer: b

(8)

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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