A. Sudden compression of gases
B. Sudden expansion of gases
C. Cooling of gases
D. Heating of gases
Physics
Medium which sends signal from source to destination is known as …….. ?
A. Transmitter
B. Transmission channel
C. Receiver
D. Hardware
Newton’s Third Law of Motion?
A. every action there is an equal and opposite reaction.
B. attraction or repulsion between two charges
C. volume of a given mass of gas increases or decreases
D. temperature remaining constant, volume of a given mass of a gas varies inversely
Oil rises up to wick in a lamp because………….?
A. Oil is very light
B. Oil is volatile
C. Diffusion of oil through the wick
D. Capillary action phenomenon
Which one of the following is not a radioactive element ?
A. Cadmium
B. Thorium
C. Radium
D. Uranium
The most suitable unit for expressing nuclear radius is…….?
A. Angstrom
B. Micro
C. Nano meter
D. Fermi
The turning effect of force is called………?
A. Moment
B. Momentum
C. Torque
D. None of these
Which of the following waves have smallest velocity in vacuum?
A. Ultraviolet
B. Sound
C. Infra-Red
D. Micro
Who were the pioneers of Physics?
A. Egyptians
B. Greek
C. Latin
D. Persians
Which one of the following is not vector quantity …….?
A. Acceleration
B. Displacement
C. Speed
D. Force