Academic Category


Todays' Thought
Edison failed 10, 000 times before he made the electric light. Do not be discouraged if you fail a few times.
- Napoleon Hill
एडिसन इलेक्ट्रिक बल्ब बनाने में 10,000 बार विफल हुए. यदि आप कुछ बार विफल हो जाते हैं तो हिम्मत मत हारिये |
- नेपोलियन हिल


    Physics Question & Answer in English

11.
First law of thermodynamics stales that.
A.  System can do work
B.  System has pressure
C.  System has energy
D.  Heat is a form of energy

12.
Velocity of sound is maximum in -
A.  Air
B.  Vacuum
C.  Water
D.  Steel

13.
In an isothermal change an ideal gas obeys.
A.  Boyle’s Law
B.  Gaylussac Law
C.  Charle’s Law
D.  None of these

14.
Electron volt is a unit of -
A.  Charge
B.  Momentum
C.  Energy
D.  Potential difference

15.
Light year is a unit of -
A.  Time
B.  Mass
C.  Energy
D.  Distance

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