Higher Study | Physics | Thermal Properties of Matter

Practice Higher Study | Physics | Thermal Properties of Matter on Bissoy — browse topics below and open any question.

Questions

Helium shows Bose-Einstein condensation below what temperature?

ক

100.5 K

খ

12.3 K

গ

5.12 K

ঘ

2.13 K

Heat energy of an object is

ক

the average energy of the molecules of the object

খ

the total energy of the molecules of the object

গ

the average velocity of the molecules of the object

ঘ

the average potential energy of the molecules of the object

In which of the following phenomena do heat waves travel along a straight line with the speed of light?

ক

Thermal conduction

খ

Thermal convention

গ

Thermal radiation

ঘ

Both A and C

Which one of the following could be the melting point of iron?

ক

25°C

খ

37°C

গ

500°C

ঘ

1500°C

A pressure cooker works on the principle of

ক

elevation of boiling point of water by application of pressure

খ

making the food-grains softer by application of pressure

গ

making the food-grains softer by application of pressure and temperature

ঘ

keeping the food-grains inside steam for a longer time

The temperature of the sun is measured with

ক

platinum thermometer

খ

gas thermometer

গ

pyrometer

ঘ

vapour pressure thermometer