Home
Class 11
PHYSICS
Assertion: Standing waves are formed whe...

Assertion: Standing waves are formed when amplitudes of two constituent waves are equal.
Reason: At any point net displacement at a given time is resultant of displacement of constituent waves.

A

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C

If Assertion is true, but the Reason is false.

D

If Assertion is false but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
Amplitudes may be different also.
Promotional Banner

Topper's Solved these Questions

  • SUPERPOSITION OF WAVES

    DC PANDEY|Exercise Level 1 Objective|11 Videos

  • SUPERPOSITION OF WAVES

    DC PANDEY|Exercise Objective Questions|1 Videos

  • SUPERPOSITION OF WAVES

    DC PANDEY|Exercise Exercise 18.4|3 Videos

  • SOUND WAVES

    DC PANDEY|Exercise Exercise 19.7|4 Videos

  • THERMOMETRY THERMAL EXPANSION AND KINETIC THEORY OF GASES

    DC PANDEY|Exercise Medical entrance gallary|30 Videos

Similar Questions

Explore conceptually related problems

A series of pulses, each of amplitude 0.150 m , are sent on a string that is attached to a wall at one end. The pulses are reflected at the wall and travel back along the string without loss of amplitude. When two waves are present on the same string. The net displacement of a given point is the sum of the displacement of the individuals waves at the point. What is the net displacement at point on the spring where two pulses am crossing, (a) if the string is rigidly attached to the post? (b) if the end at which reflection occurs is free is slide up and down ?

Consider two waves passing through the same string. Principle of superposition for displacement says that the net displacement of a particle on the string is sum of the displacements produced by the two waves individually. Suppose we state similar principles for the net velocity of the particle and the net kinetic energy of the particle. Such a principle willl be valid for

Assertion: Three waves of equal amplitudes interfere at a point. Phase difference between two successive waves is pi/2 . Then, resultant intensity is same as the intensity due to individual wave. Reason: Two different light sources are never coherent.

A stationary wave is formed by superposition of two constituent waves, having amplitude, frequency and velocity as 10 cm, 40 Hz and 200 cm/s, respectively. Write the equation of the stationary wave.

Assertion: Stationary waves are so called because particles are at rest in stationary waves. Reason: They are formed by the superposition of two identical waves travelling in opposite directions.

Two waves of amplitudes 3mm and 2 mm reach a point in the same phase. What is the resultant amplitude ?

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