Amplitude

A carrier wave with amplitude of 250 V is amplitude modulated by a sinusoidal base band signal of amplitude 150 V. The ratio of minimum amplitude to maximum amplitude for the amplitude modulated wave is 50 : x, then value of x is _________ .

A carrier wave with amplitude of 250 V is amplitude modulated by a sinusoidal base band signal of amplitude 150 V. The ratio of minimum amplitude to maximum amplitude for the amplitude modulated wave is 50 : x, then value of x is _________ .

A travelling wave of amplitude 5 A is partically reflected from a bounday with the amplitude 3A . Due to superposition of two waves with different amplitude in opposite direction a standing wave pattern is formed. Datermine the ratio of amplitude at antinode to node.

Assertion: If two waves of same amplitude produce a resultant wave of same amplitude,then the phase difference between them will be 120 ^(@) Reason: The resultant amplitude of two waves is equal to vector sum of amplitudes treated as vectors

Assertion (A) : If two waves of same amplitude produce a resultant wave of same amplitude produce a resultant wave of same of same amplitude, then the phase difference between them may br 120^(@) . Reason (R ) : The resultant amplitude of two waves is equal to algebraic sum of amplitude of two waves.