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A lead shot of a 1mm diameter falls thro...

A lead shot of a 1mm diameter falls through a long column of glycerine.The variation of its velocity `v` with distance covered is represented by,

A

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B

` (##DSH_NTA_JEE_MN_PHY_C09_E02_047_O02.png" width="30%">

C

` (##DSH_NTA_JEE_MN_PHY_C09_E02_047_O03.png" width="30%">

D

` (##DSH_NTA_JEE_MN_PHY_C09_E02_047_O04.png" width="30%">

Text Solution

Verified by Experts

The correct Answer is:
B
When a body falls throught a viscous liquid, its velocity increases due to gravity but after some time its velocity becomes uniform because of viscous force becoming equal to the gravitational force. Viscous force itself is a variable force which increases as velocity increases, so curve (a) represents the correct alternative.
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DISHA PUBLICATION-MECHANICAL PROPERTIES OF FLUIDS -EXERCISE-1 CONCEPT BUILDER
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