JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Analyzing +4 | -1

A piece of metal weighs

45g

in air and

25g

in a liquid of density

1.5 \times {10^3}kg - {m^{ - 3}}

kept at

{30^0}C

. When the temperature of the liquid is raised to

{40^0}C

, the metal piece is weighs

27g

. The density of liquid at

{40^0}C

, is

1.25 \times {10^3}kg - {m^{ - 3}}

. The coefficient of linear expansion of metal is

View answer and explanation

Correct option: C

2.6 \times {10^{ - 3}}{/^0}C

Option C (

2.6 \times {10^{ - 3}}{/^0}C

) is correct because it's calculated by finding the volume change of the metal and applying the formula for linear expansion.

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