EASY
11th Odisha Board
IMPORTANT
Earn 100

A waterfall is 42 meter high. Assuming that the kinetic energy of the falling water gets converted into heat, what is the rise in temperature of water?

( Use S = 4.2×103)

Important Questions on Thermodynamics

EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 1
For a perfect gas under adiabatic expansion, there occurs
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 2
A frictionless heat engine can be $100 \%$ efficient only if its exhaust temperature is
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11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 3
Which of the following carnot engine has maximum efficiency
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 4
Compressed air in a tube of a wheel of a scooter at normal temperature starts coming out from a puncture. The air inside
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 5
The first law of thermodynamics is a statement of 
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 6
If heat is supplied to an ideal gas in an isothermal process,
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 7
The 2nd law of thermodynamics states that
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 8
The door of an operating refrigerator in a closed room is opened. After some time, the temperature of the room will be