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Thermometry, Thermal Expansion and Calorimetry JEE physics - Thermometry, Thermal Expansion and Calorimetry

CBSE - STD 12 Science - JEE physics (CBSE - English Medium). 201 questions in this chapter.

Question types

Thermometry, Thermal Expansion and Calorimetry question types

201 questions across 2 question groups — pick any mix to generate a JEE physics paper with step-by-step answer keys.

201
Questions
2
Question groups
5
Question types
Sample Questions

Thermometry, Thermal Expansion and Calorimetry questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 5Assertion & Reason1 Mark
Assertion : The molecules at $0^{\circ} \mathrm{C}$ ice and $0^{\circ} \mathrm{C}$ water will have same potential energy.
Reason : Potential energy depends only on temperature of the system.
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Q 6MCQ1 Mark
On centigrade scale the temperature of a body increases by $30$ degrees. The increase in temperature on Fahrenheit scale is
  • A
    $50^{\circ}$
  • B
    $40^{\circ}$
  • C
    $30^{\circ}$
  • ✓
    $54^{\circ}$

Answer: D.

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Q 7MCQ1 Mark
An iron bar of length $10 \mathrm{~m}$ is heated from $0^{\circ} \mathrm{C}$ to $100^{\circ} \mathrm{C}$. If the coefficient of linear thermal expansion of iron is $10 \times 10^{-} /{ }^{\circ} \mathrm{C}$, the increase in the length of bar is
  • A
    $0.5 \mathrm{~cm}$
  • ✓
    $1.0 \mathrm{~cm}$
  • C
    $1.5 \mathrm{~cm}$
  • D
    $2.0 \mathrm{~cm}$

Answer: B.

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Q 8MCQ1 Mark
A block of mass $100 \mathrm{gm}$ slides on a rough horizontal surface. If the speed of the block decreases from $10 \mathrm{~m} / \mathrm{s}$ to $5 \mathrm{~m} / \mathrm{s}$, the thermal energy developed in the process is
  • ✓
    $3.75 \mathrm{~J}$
  • B
    $37.5 \mathrm{~J}$
  • C
    $0.375 \mathrm{~J}$
  • D
    $0.75 \mathrm{~J}$

Answer: A.

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Q 9MCQ1 Mark
A brass disc fits simply in a hole of a steel plate. The disc from the hole can be loosened if the system
  • A
    First heated then cooled
  • B
    First cooled then heated
  • C
    ls heated
  • ✓
    Is cooled

Answer: D.

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Q 10MCQ1 Mark
A metal rod of silver at $0^{\circ} \mathrm{C}$ is heated to $100^{\circ} \mathrm{C}$. It's length is increased by $0.19 \mathrm{~cm}$. Coefficient of cubical expansion of the silver rod is
  • ✓
    $5.7 \times 10 \%{ }^{\circ} \mathrm{C}$
  • B
    $0.63 \times 10 \%{ }^{\circ} \mathrm{C}$
  • C
    $1.9 \times 10 \% \mathrm{C}$
  • D
    $16.1 \times 10 \%$

Answer: A.

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