Advertisements
Advertisements
प्रश्न
Point out the waves from the given list, i.e., light, sound, radio waves, ultrasonic waves, and thermal radiation, the energy is propagated by mechanical waves.
Advertisements
उत्तर
The energy, in sound and ultrasonic waves, is propagated by mechanical waves.
संबंधित प्रश्न
How is the frequency of a stretched string related to its length?
State two factors on which the speed of a wave travelling in a medium depends.
What is meant by echo depth sounding?
How are bats able to fly in the dark?
State two factors on which the natural frequency of a body depends.
When a sound is made from a distance of 18 m, in front of a tall building, it is found to get repeated again. Which phenomenon is associated with this observation? Give a brief explanation of this phenomenon?
Draw a diagram representing a wave of amplitude 4 cm and wavelength 2 m. If the frequency of the wave is 150 Hz, calculate its velocity.
Write short notes on reflection of sound waves from plane and curved surfaces.
