Assertion :Tiny drops of liquid resist deforming forces better tha | Filo

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Class 11 Physics Mechanics Mechanical Properties of Fluids

Assertion :Tiny drops of liquid resist deforming forces better than bigger drops
Reason :Excess pressure inside a drop is directly proportional to surface tension.

(a)

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

(b)

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

(c)

Assertion is correct but Reason is incorrect

(d)

Both Assertion and Reason are incorrect

Correct answer: (b)

Solution: When a drop of liquid is poured on a glass plate, the shape of the drop is governed by two forces, the force of gravity. For very small drops, the potential energy due to gravity is insignificant compared to that due to surface tension. Hence, in this case the shape of the drop is determined by surface tension alone and drop becomes spherical.

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Similar topics

mechanical properties of fluids

laws of motion

oscillations

systems of particles and rotational motion

energy and power

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mechanical properties of fluids

laws of motion

oscillations

systems of particles and rotational motion

energy and power

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To measure the radius of the drop Millikan used _____ law of freely falling drops.

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Of the following, which is the only ratio that is NOT dimensionless?

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is applied to the shaft, parallel to the sleeve, the shaft speed of

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. If a force of

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is applied instead, the shaft would move with a speed of

play button image

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Copyright FILO EDTECH PVT. LTD. 2021