EASY
12th Maharashtra Board
IMPORTANT
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What is a perfect blackbody ? How can it be realized in practice? 

Important Questions on Kinetic Theory of Gases and Radiation

EASY
12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 3 - Kinetic Theory of Gases and Radiation>Exercises>Q 8
State (i) Stefan-Boltmann law and (ii) Wein's displacement law. 
HARD
12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 3 - Kinetic Theory of Gases and Radiation>Exercises>Q 9
Explain spectral distribution of blackbody radiation. 
MEDIUM
12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 3 - Kinetic Theory of Gases and Radiation>Exercises>Q 10
 State and prove Kirchhoff's law of heat radiation. 
EASY
12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 3 - Kinetic Theory of Gases and Radiation>Exercises>Q 11
Calculate the ratio of mean square speeds of molecules of a gas at 30 K and 120 K. 
MEDIUM
12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 3 - Kinetic Theory of Gases and Radiation>Exercises>Q 12
Two vessels A and B are filled with same gas where volume, temperature and pressure in vessel A is twice the volume, temperature and pressure in vessel B. Calculate the ratio of number of molecules of gas in vessel A to that in vessel B. 
MEDIUM
12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 3 - Kinetic Theory of Gases and Radiation>Exercises>Q 13
A gas in a cylinder is at pressure P. If the masses of all the molecules are made one third of their original value and their speeds are doubled, then find the resultant pressure. 
 
EASY
12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 3 - Kinetic Theory of Gases and Radiation>Exercises>Q 14
Show that rms velocity of an oxygen molecule is 2 times that of a sulfur dioxide molecule at S.T.P. 
MEDIUM
12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 3 - Kinetic Theory of Gases and Radiation>Exercises>Q 15
 At what temperature will oxygen molecules have same rms speed as helium molecules at S.T.P.? (Molecular masses of oxygen and helium are 32 and 4 respectively)