NEET UG PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

1 Easy

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Application +4 | -1

Two iron rods have their lengths in the ratio 5:3 and diameters in ratio 2:1 when the rods are heated from

{30^ \circ }C

{100^ \circ }C

the ratio of their linear expansions is

View answer and explanation

Correct option: A

0.210416667

Option A (0.210416667) is correct because it is the ratio of the linear expansions calculated using the given lengths and diameters.

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\left. {0.05{\text{W}}{{\text{m}}^{ - 1}}^\circ {{\text{C}}^{ - 1}}} \right)

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