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NEET UG PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Analyzing +4 | -1
Identify the pair of physical quantities which have different dimensions.
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Correct option: D
Specific heat capacity and Latent heat
Option D (Specific heat capacity and Latent heat) is correct because they have different dimensional formulas.

More Questions from THERMAL PROPERTIES OF MATTER

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Four identical calorimeters painted in different colours, are heated to same temperature and then allowed to cool in vacuum. Which will cool fastest? An ice cube of dimensions 60ย cmร—50ย cmร—20ย cm60 \mathrm{~cm} \times 50 \mathrm{~cm} \times 20 \mathrm{~cm} is placed in an insulation box of wall thickness 1ย cm1 \mathrm{~cm}. The box keeping the ice cube at 0โˆ˜C0^{\circ} \mathrm{C} of temperature is brought to a room of temperature 40โˆ˜C40^{\circ} \mathrm{C}. The rate of melting of ice is approximately.

(Latent heat of fusion of ice is 3.4ร—105ย Jย kgโˆ’13.4 \times 10^5 \mathrm{~J} \mathrm{~kg}^{-1} and thermal conducting of insulation wall is 0.05Wmโˆ’1โˆ˜Cโˆ’1)\left. {0.05{\text{W}}{{\text{m}}^{ - 1}}^\circ {{\text{C}}^{ - 1}}} \right)
A black body radiates heat energy at the rate of 2ร—105ย J/sm22 \times 10^5 \mathrm{~J} / \mathrm{sm}^2 at temp. of 127โˆ˜C127^{\circ} \mathrm{C}. The temp of black body at which rate becomes 32ร—105ย J/sโˆ’m232 \times 10^5 \mathrm{~J} / \mathrm{s}-\mathrm{m}^2 is: The amount of radiation emitted by a perfectly black body is proportional to Amount of heat required to raise the temperature of a body through 1K is called its If Poissonโ€™s ratio ฯƒ\sigma is +12+ \frac{1}{2} for a material, then the material is
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