The periodic alternation of sound between maximum and minimum loudness are called___________________?

Related Mcqs:

1. Name the branch of science which deals with the study of sound and sound waves?

   A. Aeronautics
   B. Acoustics
   C. Aerostatics
   D. Aetiology

   Submitted by: ABDUL HAYEE

2. The minimum distance between an object and its real image in a convex lens is_____________?

   A. 2 f
   B. 2.5 f
   C. 3f
   D. 4f

3. The energy band occupied by the valence electrons is called___________________?

   A. Energy state
   B. Valence band
   C. ve energy state
   D. conduction band

4. Materials in which valence electrons are tightly bound to their atoms at low temperature are called___________________?

   A. Semi conductor
   B. Super conductors
   C. Insulators
   D. Conductor

5. The angular position of cells remains the same for a sample of a crystal. This property is called___________________?

   A. Isotropy
   B. Cleavage
   C. Homogeneity
   D. The external symmetry of form

6. According to Newton sound travel in air under the conditions of_____________________?

   A. adiabatic
   B. isothermal
   C. isobaric
   D. isochoric

7. Velocity of sound in vacuum is ____________________?

   A. 332 ms-1
   B. 320 ms-1
   C. Zero
   D. 224 ms-1

8. When the source of sound moves away form a stationary listener then ______________ occurs?

   A. an apparent increase in frequency
   B. an apparent decrease in frequency
   C. an apparent decrease in wavelength
   D. no apparent change in frequency

9. Increase in velocity of sound in the air for 1°C rise in temperature is_________________?

   A. 1.61 ms-1
   B. 61.0 ms-1
   C. 0.61 ms-1
   D. 2.00 ms-1

10. 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