An air bubble of a radius 1cm in water has an upward acceleration 9.8 cm s-2. The density of water is 1gm cm-3 and water offers negligible drag force on the bubble. The mass of the bubble is (g=980 cm/s2)
Option: 1 4.51 gm
Option: 2 3.15 gm
Option: 3 4.15 gm
Option: 4 1.52 gm
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