20. The number of waves passing through a point in one second is called:
(A) Frequency(B) Displacement(C) Wavelength(D) Amplitude
20. The number of waves passing through a point in one second is called: Read More »
19. In a vacuum all electromagnetic waves have the same?
(A) Speed(B) Frequency(C) Amplitude(D) Wavelength
19. In a vacuum all electromagnetic waves have the same? Read More »
18. Which of the following methods of energy transfer?
(A) Conduction(B) Radiation(C) Motion of wave(D) All of these
18. Which of the following methods of energy transfer? Read More »
15. Time period is inverse of?
(A) Velocity(B) Frequency(C) Wavelength(D) Time
15. Time period is inverse of? Read More »
14. The disturbance produced in the water is transferred?
(A) Perpendicular to the wave(B) Opposite to the wave(C) Along with waves(D) None of these
14. The disturbance produced in the water is transferred? Read More »
13. The motion of card pieces on the water surface about their mean positions is known as:
(A) Oscillatory motion(B) To and from motion(C) Random motion(D) Vibratory motion
12. The broad casting of radio and television programs is made possible by?
(A) Waves(B) Particles(C) Clouds(D) Light
12. The broad casting of radio and television programs is made possible by? Read More »
11. Which waves do not require medium for their propagation?
(A) Sound waves(B) Mechanical waves(C) Electromagnetic waves(D) All of the above
11. Which waves do not require medium for their propagation? Read More »