WB JEE 2008 | Heat and Thermodynamics Question 3 | Physics

WB JEE 2008

MCQ (Single Correct Answer)

-0.25

An experiment takes 10 minutes to raise temperature of water from 0$$^\circ$$C to 100$$^\circ$$C and another 55 minutes to convert it totally into steam by a stabilized heater. The latent heat of vaporization comes out to be

530 cal/g

540 cal/g

550 cal/g

560 cal/g

WB JEE 2008

MCQ (Single Correct Answer)

-0.25

At what temperature will the rms speed of air molecules be double that of NTP?

519$$^\circ$$C

619$$^\circ$$C

719$$^\circ$$C

819$$^\circ$$C

WB JEE 2008

MCQ (Single Correct Answer)

-0.25

When the room temperature becomes equal to the dew point, the relative humidity of the room is

100%

zero%

70%

85%

WB JEE 2026

MCQ (Single Correct Answer)

-0.25

Two identical metal bars are heated in two different temperatures and allowed to cool in the same surroundings. Which one of the following figures correctly shows their cooling curves?

WB JEE 2026 Physics - Heat and Thermodynamics Question 1 English Option 1

WB JEE 2026 Physics - Heat and Thermodynamics Question 1 English Option 2

WB JEE 2026 Physics - Heat and Thermodynamics Question 1 English Option 3

WB JEE 2026 Physics - Heat and Thermodynamics Question 1 English Option 4

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