Download App

Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
MCQ
When sound travels through air, the air particles:
  • A
    Vibrate along direction of wave propagation
  • B
    Vibrate but not in any fixed direction
  • C
    Vibrate perpendicular to direction of wave propagation
  • D
    Do not vibrate
✓

Answer

  1. Vibrate along direction of wave propagation

Explanation:

Air have bulk property so it only transfers longitudinal wave. A sound wave in air propagates as a longitudinal wave, in the form of compression and rarefaction so medium particles vibrate in the direction of wave propagation. 

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 M]" from Sound→Sound — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

A water tanker filled upto $\frac{2}{3}$ of its height is moving with a unifrom spees. On sudden application of the brake, the water in the tank would:
→
Two persons are applying forces on two opposite sides of a moving cart. The cart still moves with the same speed in the same direction. What do you infer about the magnitudes and direction of the forces applied.
→
3.42g of sucrose are dissolved in 18g of water in a beaker. The numbers of oxygen atoms in the solution are:
→
Which of the following are chemical changes?
  1. Decaying of wood.
  2. Burning of wood.
  3. Sawing of wood.
  4. Hammering of a nail into a piece of wood.
    →
    The term mitosis was given by:
    →
    Work done by centripetal force is:
    →
    A stone tied to a string is whirled in a circle. As it is revolving, the rope suddenly breaks.Then:
    →
    Choose the substance that is used as a filter.
    →
    The ultrasound waves can penetrate into matter to a large extent because they have: 
    →
    The nucleus is the site for synthesis of:
    →