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qUESTIONS

12th-cet

Two periodic waves of intensities I1 and I2 pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is

12th-cet

Two waves represented by y1 = A1 sin(ωt−kx) and y2 =A2 cos(ωt−kx) are superposed. The resultant wave will have an amplitude

12th-cet

The velocity of sound in air is 330 m/s^-1. The r.m.s. velocity of air molecules (ɣ = 1.4) is approximately equal to

12th-cet

A wave travelling in positive x−direction with A=0.2m has a velocity of 360m/s. If λ=60m, then correct expression for the wave is

12th-cet

If the phase difference between the two wave is 2p during superposition, then the resultant amplitude is

12th-cet

Two waves y1=A1 sin (Q1) and y2=A2 sin (Q2) superimpose to form a resultant wave whose amplitude is

12th-cet

A travelling wave represented by y = A sin(ωt – kx) is superimposed on another wave represented by y =A sin (ωt + kx). The resultant is

12th-cet

The displacement y of a particle is given by y=4cos^2(t/2)sin(1000t). This expression may be considered to be a result of the superposition of how many simple harmonic motions?

12th-cet

A closed organ pipe of length L and an open organ pipe contain gases of densities p1 and p2 respectively. The compressibility of gases are equal in both the pipes. Both the pipes are vibrating in their first overtone with same frequency. The length of the open organ pipe is

12th-cet

A resonance pipe is open at both ends and 30 cm of its length is in resonance with an external frequency 1.1 kHz. If the speed of sound is 330 m/s which harmonic is in resonance

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