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HomePhysicsMass of moon is   7.34 ×1022  kg. If the acceleration due to gravity on the moon is  1.4 m/s2 , the radius of the moon is (G = 6.667×10-11 Nm2 /kg2)

Mass of moon is   7.34 ×1022  kg. If the acceleration due to gravity on the moon is  1.4 m/s2 , the radius of the moon is (G = 6.667×10-11 Nm2 /kg2)

(a)    0.56 × 104                 (b) 1.87  × 106

(c)    1.92 × 106               (d)  1.01 × 108

Answer:  b

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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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