When the amplitude of a wave becomes double its energy become_________________?

Related Mcqs:

1. When crest of one wave falls over the trough of the other wave this phenomenon is known as________________?

   A. polarization B. constructive interference C. destructive interference D. diffraction...

2. In a half-wave rectifier the r.m.s. value of the A.C. component of the wave is________________?

   A. Equal to D.C. value B. More than D.C. value C. Less than D.C. value D. Zero...

3. A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is____________________?

   A. (F1+F2) (121+122) B. (F1+F2) (122-112) C. (F1+F2) (12-11) D. (F1+F2) (12-11)...

4. The distance covered by a body in one complete vibration is 20cm. What is the amplitude of body ___________________?

   A. 10 cm B. 5 cm C. 15 cm D. 7.5 cm...

5. Displacement of the body in S.H.M is equal to amplitude when the body is at_______________?

   A. Mean position B. Elsewhere C. Extreme position D. None...

6. In vibrating cord the points where the amplitude is maximum, are called ___________________?

   A. antinodes B. nodes C. troughs D. crests...

7. An alternating current is represented by the equation I = I∫sinπt which of the following equation represents an alternating current of frequency and amplitude twice that of the above current ?

   A. I = 2I∫Sin(πt/2) B. I = 2I∫Sin(2πt) C. I = 2ISinπt D. I = I∫sin(2πt)...

8. The velocity of sound in air would become double than its velocity at 0°C at temperature ?

   A. 313°C B. 586°C C. 819°C D. 1172°C...

9. The velocity of sound in air would become double than its velocity at 0°C at temperature________________?

   A. 313°C B. 586°C C. 819°C D. 1172°C...

10. When arrow is released form its bow, its energy is transformed from _____________________?

    A. heat energy to K.E B. elastic P.E to K.E C. elemical energy to elastic P.E D. K.E to elastic P.E....