Frequency is the inverse of __________?

Related Mcqs:

1. Who discovered the inverse square law for gravity ?

   A. Einstein
   B. Galileo
   C. Newtons
   D. Plank

2. A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency ?

   A. 1/4f
   B. 1/2f
   C. frequency lower than 20 Hz
   D. 2f

3. Fundamental frequency of stationary waves in open pipe is ______________ times the frequency in closed pipe?

   A. One
   B. Two
   C. Four time
   D. None of these

4. The normal ear is the most sensitive in the frequency range___________________?

   A. 20000 to 30000 hertz
   B. 10 to 20 hertz
   C. 2000 to 4000 hertz
   D. 6000 to 8000 hertz

5. An alternating current of the r.m.s value of 4.0 A and frequency 50Hz flows in a circuit containing a 10Ω resistor. The peak current is then ?

   A. 20A
   B. 20.66A
   C. 6.66A
   D. 5.66A

6. 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)

7. A wire of resistance R is coiled inductively so that its inductance is L. The impedance of the coil at a frequency of f is_______________?

   A. (R+2πfL)
   B. R+1/2πfL
   C. (R2+f2L2)
   D. (R2+4π2f2L2)

8. S.I unit of frequency is_________________?

   A. Vibration S-2
   B. Radian
   C. Hertz
   D. ms-1

9. Photon of highest frequency will be absorbed when transition takes place from_____________?

   A. 1st to 5th orbit
   B. 2nd to 5th orbit
   C. 3rd to 5th orbit
   D. 4th to 5th orbit

10. Product of time period and frequency is ____________?

    A. Time period
    B. Frequency
    C. Unity
    D. Velocity

    Submitted by: Chakar Hussain Shar