Two sound waves (expressed in CGS units) given by y1=0.3sin2πλ(vtx) and y2=0.4sin2πλ(vtx+θ) interfere. The resultant amplitude at a place where the phase difference is π/2 will be :

(1) 0.7 cm

(2) 0.1 cm

(3) 0.5 cm

(4) 1107cm

Subtopic:  Wave Motion |
 86%
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If two waves having amplitudes 2A and A and same frequency and velocity, propagate in the same direction in the same phase, the resulting amplitude will be 

1. 3A

2. 5A

3. 2A

4.  A

Subtopic:  Wave Motion |
 56%
From NCERT
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The intensity ratio of the two waves is 1 : 16. The ratio of their amplitudes is 

(1) 1 : 16

(2) 1 : 4

(3) 4 : 1

(4) 2 : 1

Subtopic:  Speed of Sound |
 91%
From NCERT
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The superposing waves are represented by the following equations : y1=5sin2π(10t0.1x), y2=10sin2π(20t0.2x) Ratio of intensities ImaxImin will be :

(1) 1

(2) 9

(3) 4

(4) 16

Subtopic:  Wave Motion |
 82%
From NCERT
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The displacement of a particle is given by x=3sin(5πt)+4cos(5πt). The amplitude of the particle is :

(1) 3

(2) 4

(3) 5

(4) 7

Subtopic:  Wave Motion |
 87%
From NCERT
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The two interfering waves have intensities in the ratio 9 : 4. The ratio of intensities of maxima and minima in the interference pattern will be :

(1) 1 : 25

(2) 25 : 1

(3) 9 : 4

(4) 4 : 9

Subtopic:  Wave Motion |
 89%
From NCERT
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If the ratio of amplitude of two waves is 4 : 3. Then the ratio of maximum and minimum intensity will be :

(1) 16 : 18

(2) 18 : 16

(3) 49 : 1

(4) 1 : 49

Subtopic:  Wave Motion |
 90%
From NCERT
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Equation of motion in the same direction is given by y1=Asin(ωtkx), y2=Asin(ωtkxθ). The amplitude of the medium particle will be 

1. 2Acosθ2

2. 2Acosθ

3. 2Acosθ2

4. 1.2f,1.2λ

Subtopic:  Wave Motion |
 62%
From NCERT
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The displacement of the interfering light waves are y1=4sinωt and y2=3sinωt+π2. What is the amplitude of the resultant wave :

(1) 5

(2) 7

(3) 1

(4) 0

Subtopic:  Wave Motion |
 91%
From NCERT
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Two waves are represented by y1=asinωt+π6 and y2=acosωt. What will be their resultant amplitude :

(1) a

(2) 2a

(3) 3a

(4) 2a

Subtopic:  Wave Motion |
 69%
From NCERT
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