NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

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Analyzing +4 | -1

A load suspended by a massless spring produces an extension of

x\,\,cm

in equilibrium. When it is cut into two unequal parts, the same load produces an extension of

7.5\,\,cm

when suspended by the larger part of length 60 cm. When it is suspended by the smaller part, the extension is 5.0 cm Then

View answer and explanation

Correct option: A

x = 12.5

Option A (

x = 12.5

) is correct because the extension is inversely proportional to the spring constant, which is inversely proportional to the length of the spring.

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