JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

1 Medium

1 of 1

Understanding +4 | -1

If a rain drop starts falling from the cloud
level then before it acquires the terminal
velocity, its acceleration and velocity
respectively

View answer and explanation

Correct option: A

increases, decreases

Option B (decreases, increases) is correct because as the raindrop falls, air resistance increases, causing the acceleration to decrease while the velocity increases until terminal velocity is reached.

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poise. A liquid rises to a height of 2 cm in a capillary tube. The angle of contact between the solid and the liquid is zero. The tube is depressed more so that the top of capillary tube is only one cm above the liquid. Then the apparent angle of contact between the solid and liquid is An object weights

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d_1

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m_2

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