ICSE Class 10: Characteristics of Sound Videos | Sound

• the characteristics of soumd which enables you to differ two soumd on basis of their intensity
• bats can find their way in the darkness and can sense objects as thin as human hair. name and define the physical quantity used. Please answer at the earliest
• what difference would be felt by a listener when hearing sounds of wavelength 1.3 metre and 2.6 metre travelling at the same velocities?
• Derive relation between -wavelength ,wave velocity and frequency.
• Derivation between f=1/t.
• Name the unit used to measure the sound level

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