Physics
When a stone is thrown in the calm water of a pond the waves produced on the surface of water in the pond are

Longitudinal
Waves are not produced
Transverse
Both longitudinal and transverse

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Physics
In total internal reflection, the light travel from

Denser to rarer medium and it occurs with loss of intensity
Rarer to denser medium and it occurs with no loss of intensity
Denser to rarer medium and it occurs with no loss of intensity
Rarer to denser medium and it occurs with loss of intensity

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Physics
Stationary wave is formed by

Two waves of same frequency travelling in the opposite direction
A transverse wave superposing a longitudinal wave
Two waves of same frequency travelling in the same direction
Two waves of the same speed superposing

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