The unit of frequency1. Joule2. Calorie3. m/sec4. Hertz
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The number of cycles in one second is called1. wavelength2. velocity3. frequency4. time period
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If the particles of the medium vibrate in the direction of propagation of waves, the waves are called1. stationary waves2. electromagnetic waves3. light waves4. longitudinal waves
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Compressions and rarefactions are formed in these waves1. light waves2. stationary waves3. longitudinal waves4. transverse waves
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The waves which energy is bonding between two terminals is1. Transverse waves2. Longitudinal waves3. Progressive waves4. Stationary waves
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Sound waves are example for1. Longitudinal waves2. Transverse waves3. Stationary waves4. Electromagnetic waves