10th Class Physics Chapter 3 TestWAVES

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

1. The maximum displacement of a point on a wave from its rest position is the:

   1. Wavelength

   2. Frequency

   3. Amplitude

   4. Time period

2. Which are the fastest seismic waves and the first to be detected during an earthquake?

   1. Secondary waves

   2. Surface waves

   3. Primary waves

   4. Tidal waves

3. The number of complete wave cycle that pass a fixed point in one second is the:

   1. Time period

   2. Wave speed

   3. Frequency

   4. Amplitude

4. The highest points of a transverse wave are known as ...... .

   1. Troughs

   2. Compressions

   3. Rarefactions

   4. Crests

5. How does the speed of tsunami wave change as it approaches shallow coastal areas?

   1. The speed increases significantly

   2. The speed remains contant

   3. The speed decreases

   4. The waves stops completely

6. The bouncing back of waves into the same medium after striking a surface is:

   1. Refraction

   2. Reflection

   3. Diffraction

   4. Absorption

7. What is the SI unit of wavelength?

   1. Second

   2. Matre

   3. Hertz

   4. Newton

8. When waves pass from one medium into another and change direction due to change in speed, this process is called ...... .

   1. Reflection

   2. Refraction

   3. Diffraction

   4. Absorption

9. In the deep ocean, tsunami waves can reach speeds up to ......:

   1. 100 km/h

   2. 300 km.h

   3. 500 km/h

   4. 800 km/h

10. According to the law of reflection:

    1. Angle of incidence > Angle of reflection

    2. Angle of incidenc < Angle of reflection

    3. Angle of incidence = Angle of reflection

    4. None of these