Wave Motion | MCQs

Explanation

The crest is the part of a transverse wave where the particles of the medium are at the highest point, above the undisturbed position.

It is the peak or maximum displacement point in the wave.

Explanation

Progressive waves are waves that transfer energy from one point to another through a medium, such as a solid, liquid, or gas.

They are also known as mechanical waves, and examples include:

• Water waves
• Sound waves
• Seismic waves (earthquakes)

Explanation

If there are 25 waves in a 5-second time period, the frequency of the waves can be calculated using the formula: Frequency= Number of waves/Time period = 25/5 =5 Hz

Explanation

If the source moves toward the observer, the frequency of the sound waves perceived by the observer increases due to the Doppler effect.

Explanation

Waves in the ocean can indeed travel at speeds exceeding a hundred miles per hour

Especially during severe storms or tsunamis.

These high speeds are possible due to the energy transferred from the wind or seismic events to the water, causing the waves to propagate rapidly across the ocean surface.