10th Class Physics Chapter 3 Test12. Waves

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Wave equation is given by:
   1. v = f × λ
   2. v = λ / T
   3. v = f / λ
   4. v = T × λ
2. In wave motion, energy is transferred by means of:
   1. Transport of medium
   2. Vibrations
   3. Force
   4. Heat
3. The shortest distance between points where the wave pattern repeats is called:
   1. Frequency
   2. Amplitude
   3. Wavelength
   4. Displacement
4. Time period of electrical vibrator of ripple tank is 0.5 s, water waves in ripple tank has speed of 10 m/s and amplitude of 5 cm. Calculate the frequency of the waves.
   1. 50 Hz
   2. 0.5 Hz
   3. 200 Hz
   4. 2 Hz
5. Which wave does not need a material medium?
   1. Water waves
   2. Sound waves
   3. Electromagnetic waves
   4. Rope waves
6. The maximum upward displacement of a wave is called:
   1. Trough
   2. Node
   3. Crest
   4. Mean position
7. Tsunami waves at the coast increase in:
   1. Speed
   2. Wavelength
   3. Height
   4. Transparency
8. The human eardrum can oscillate back and forth up to:
   1. 2,000 times per second
   2. 20,000 times per second
   3. 200,000 times per second
   4. 200 times per second
9. Waves that require a material medium to propagate are called:
   1. Electromagnetic waves
   2. Mechanical waves
   3. Longitudinal waves
   4. Transverse waves
10. A wave in a rope is an example of:
    1. Longitudinal wave
    2. Transverse wave
    3. Electromagnetic wave
    4. Sound wave