11th Class Physics MCQS
The experimental value for the velocity of sound in air is
333 m-sec-1
533 m-sec-1
433 m-sec-1
233 m-sec-1
The distance between two consecutive crests of troughs is called
Frequency
Time period
Displacement
Wave length
When two waves of same frequency travel in opposite direction, the phenomenon will be
Stationary waves
Interference
Diffraction
Polarization
When two waves having same frequency traveling in same direction combine, phenomenon is called
Interference
Combination of waves
Wave motion
Diffraction
1 2
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