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प्रश्न
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उत्तर
The propagation of wave through a medium due to the repeated oscillatory motion of the particles of the medium about their mean position, the motion being handed over from one particle of the medium to the next particle progressively is referred to as wave motion.
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संबंधित प्रश्न
State the use of echo by a bat, dolphin and fisherman.
Explain how is the principle of echo used by
(a) The bat during its flight at night,
(b) The dolphin to locate small fish as its prey.
What is meant by echo depth sounding?
What do you understand by the ‘Echolocation system of Dolphins’?
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.
Explain why, the ceilings of concert halls are curved.
Explain Reflection at curved surfaces.
What is meant by an echo? Explain.
