A air bubble of radius 1 cm in water has an upward acceleration 9.8 cm s?². The density of water is 1gmcm?³ and water offers negligible drag force on the bubble. The mass of the bubble is: (g = 980 cm/s²).
A air bubble of radius 1 cm in water has an upward acceleration 9.8 cm s?². The density of water is 1gmcm?³ and water offers negligible drag force on the bubble. The mass of the bubble is: (g = 980 cm/s²).
Option 1 -
4.51gm
Option 2 -
1.52gm
Option 3 -
3.15gm
Option 4 -
4.15gm
Asked by Shiksha User
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1 Answer
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Correct Option - 4
Detailed Solution:ρvg - mg = ma
⇒ pvg/m = g + a
⇒ m = pvg / (g + a)⇒ 10³ (4/3 π × 10? ) (9.8) / 9.898
⇒ 4.15gm
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