Heat Transfer: NEET Physics Previous Year Questions

200 previous year questions from Heat Transfer. Here are the 25 most important ones; open any question for the correct answer and a full step-by-step solution.

1. $An ideal black body at room temperature is thrown into a furnace. It is observed that$
2. $Consider two hot bodies B_{1} and B_{2} which have temperatures 10 0^{o} C and 8 0^{o} C respectively at t = 0 . The temperature of the surroundings is\dots$
3. $A black body of surface area 10 c m^{2} is heated to 127°C and is suspended in a room at temperature 27°C. The initial rate of loss of heat from the body at the room temp\dots$
4. $Relation between the colour and the temperature of a star is given by$
5. $A hot liquid cools from 70°C to 60°C in 5 minutes. The time needed by same liquid to cool from 60°C to 50°C will be-$
6. $A 750 Hz, 20 V (rms) source is connected to a resistance of 100Ω, an inductance of 0.1803 H and a capacitance of\dots$
7. $The radiation emitted by a star A is 10,000 times that of the sun. If the surface temperatures of the sun and the star A are 6000 K and 2000 K respectively, the ratio of\dots$
8. $On a clear sunny day, an object at temperature T is placed on the top of a high mountain. An identical object at the same temperature is placed at the foot of mountain. I\dots$
9. $When red glass is heated in dark room it will seem$
10. $The maximum energy in the thermal radiation from a hot source occurs at a wavelength of 11 \times 1 0^{- 5} cm . According to Wein's law, the temperature of the so\dots$
11. $Which of the following is the example of ideal black body$
12. $If the temperature of a black body be increased from 27 to 327 the radiation emitted increases by a fraction of$
13. $Which of the following statement is correct$
14. $The two ends of a metal rod are maintained at temperatures 100ºC and 110ºC. The rate of heat flow in the rod is found to be 4.0 J/s. If the ends are maintained at tempera\dots$
15. $The energy spectrum of a black body exhibits a maximum around a wavelength λ_{0} . The temperature of the black body is now changed such that the energy is max\dots$
16. $A black body emits radiations of maximum intensity at a wavelength of 5000 A ˚, when the temperature of the body is 122 7^{o} C . If the temperature of the body is i\dots$
17. $Newton's law of cooling is used in laboratory for the determination of the$
18. $A liquid cools down from 7 0^{o} C to 6 0^{o} C in 5 minutes. The time taken to cool it from 6 0^{o} C to 5 0^{o} C will be$
19. $If the temperature of the body is increased by 10%, the percentage increase in the emitted radiation will be$
20. $A black body is at a temperature of 2880K. The energy of radiation emitted by this object with wave length between 499 nm and 500 nm is U_{1}, between 999 nm and 1000 n\dots$
21. $According to Newton's law of cooling, the rate of cooling of a body is proportional to (Δ θ)^{n}, where Δθ is the difference of the temperature of the body and the surro\dots$
22. $Two spheres of same material have radius 1m and 4 m and temperature 4000K and 2000K respectively. The energy radiated per second by the first sphere is$
23. $Four pieces of iron heated in a furnace to different temperatures show different colours listed below. Which one has the highest temperature$
24. $Which of the following statements is true/correct$
25. $In rainy season, on a clear night the black seat of a bicycle becomes wet because$

Download Heat Transfer PYQs as PDF

Free questions PDF, 30 questions per set, with the Mere Teacher watermark and a QR code to the site. Answers and step-by-step solutions open after a free sign-up, with a download option too.

See all 200 Heat Transfer questions, free

Sign up free to practise them in your own custom test, with Concept Priority Question Bank, Test Series and BroBot AI help.

New here? See what Mere Teacher offers

Heat Transfer: NEET Physics Previous Year Questions

Download Heat Transfer PYQs as PDF

More NEET Physics chapters