The number of beats produced per second is equal to____________________?

Related Mcqs:

1. Beats are the results of____________________?

   A. diffraction of sound waves
   B. constructive and destructive interference
   C. polarization
   D. destructive interference

2. The beats frequency (sensible) for a human car is _____________________?

   A. 42Hz
   B. 7 Hz
   C. 256Hz
   D. 262Hz

3. Time rate of change of momentum is equal to____________________?

   A. force
   B. impulse
   C. velocity
   D. both A and C

4. Slope of work time graph is equal to____________________?

   A. displacement
   B. acceleration
   C. power
   D. energy

5. Silence zone takes place due to____________________?

   A. constructive interference
   B. destructive interference
   C. beats
   D. resonance

6. Doppler effect applies to____________________?

   A. sound wave only
   B. light wave only
   C. both sound and light waves
   D. neither sound nor light wave

7. The resultant of two forces of equal magnitudes is also equal to the magnitude of the forces. The angle between the two forces is________________?

   A. 30°
   B. 60°
   C. 90°
   D. 120°

8. The average acceleration caused by gravity per second is____________?

   A. 22 feet
   B. 32 feet
   C. 52 feet
   D. 42 feet

   Submitted by: Yalmaz Fahim

9. How many electrons per second constitute a current of one micro ampere?

   A. one electron
   B. 10 ^–6 electrons
   C. 10⁶ electrons
   D. 6.25 × 10¹² electrons

   Submitted by: Tauseef Ali

10. A diffraction grating has 500 lines per mm. Its slit spacing or grating element will be equal to ____________________?

    A. 500 mm
    B. 5 x 10-3 mm
    C. 2 x 10-5 mm
    D. 2 x 10-3 mm