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संबंधित प्रश्न
Write true or false for a given statement.
The frequency is measured in hertz.
What type of wave is represented :
(a) by density-distance graph?
(b) by displacement-distance graph?
In fig. 2 two musical notes of the same pitch and same loudness are played on a violin and on a piano. Their wave forms are as shown in the diagram below. Explain why the wave patterns are different.
Complete the following sentences :
Wave velocity = ________________ × wavelength.
Draw a displacement-time graph for water wave.
The distance between one crest and one trough of a sea wave is 4.5 m. If the waves are produced at the rate of 240/min, calculate the wave velocity.
What type of sound is produced by elephants and whales?
Sound is a ______ wave and needs a material medium to travel.
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
Note is a sound
