Which of the following waves is a wave in which the particles of the medium vibrate in the direction parallel to the direction of propagation of the wave ?

Wavefronts are lines joining all the points of the _______ phase.

Oscillating system is a system that undergoes _________ .

Vibration / Oscillation is the movement from one _________ position to the other and back to the _________ position.

Amplitude is the ________ displacement from its __________ position.

Period is the time taken for _____ oscillation to complete in one cycle.

Frequency is the number of complete oscillations produced in one _____ .

Wavelength is the distance between two successive ________ point on the wave.

Damping is the ________ in the _________ of an oscillating system when its energy is drained out as ________ .

Resonance is a ___________ when where its forced frequency is ________ to the natural tendency of the object.

Refraction of wave is a change in the _________ of waves as the waves pass from one medium to another.

Diffraction of wave is a phenomenon in which waves ________ as they pass through a gap or round a small obstacle.

Monochromatic light is a light of _______ colour or of ______ wavelength only.

Principle of superposition states that when two waves move simultaneously and coincide at one point ,the sum of the __________ at that point is equal to the sum of displacements at the individual waves by ________ method.

Interference is the superposition of two waves originating from ______ coherent sources.

Coherent source are sources have same _______ , same _______ and in phase of _______ phase difference.

Constructive interference occurs when of crests or troughs of both waves coincide to produce a wave with crests or troughs of _______ amplitude.

Destructive interference occurs when crest of one wave coincide with the trough of other wave, thus cancelling each other with the result that resultant amplitude is ________ .