The process of transfer of heat in fluids by actual movement of particles is called MCQ with Answer and Explanation

The process of transfer of heat in fluids by actual movement of particles is called
A. Radiation
B. Evaporation
C. Convection
D. Conduction
Answer: Option C
Solution (By JKSSB Mock Tests)
Convection requires medium, movement of hot and cold masses. Land/sea breeze, trade winds, heating water. Conduction vibration transfer without particle movement.

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Practice More Physics Questions

Question #1
The energy equivalent of 1 amu is approximately
A. 931 eV
B. 1.6 × 10⁻¹⁹ J
C. 3.0 × 10⁸ J
D. 931 MeV

Correct Answer: Option D


Explanation:
1 amu = 1.6605 × 10⁻²⁷ kg, using E=mc² gives about 931.5 MeV. Used in nuclear binding energy calculations. Not eV, but MeV. Very large energy per nucleon.

This question belongs to: Science Physics
Question #2
A spring with k=200 N/m is compressed by 0.1 m. Potential energy stored is
A. 20 J
B. 1 J
C. 2 J
D. 0.5 J

Correct Answer: Option B


Explanation:
U = ½ k x² = ½×200×0.01 = 1 J.

This question belongs to: Science Physics
Question #3
A bimetallic strip is used in
A. Thermostat
B. Hydrometer
C. Barometer
D. Thermometer

Correct Answer: Option A


Explanation:
Thermostat uses differential expansion to make/break circuit.

This question belongs to: Science Physics