Wave Speed expression
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The angle between particle velocity and wave velocity in transverse waves is
What does wavelength mean?
- 40.2 m/s
- 425 m/s
- 44.5 m/s
- 15.6 m/s
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1052867/original_36.png)
- 620697 s
- 434205 s
- 2 s
- 0.2 s
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1123292/original_original_3.png)
- Points D, E and F have upward (positive) velocity.
- Points A, B and H have downward (negative) velocity.
- Point C and G have zero velocity.
- Points A and E have minimum velocity.
![](https://infinitestudent-migration-images.s3-us-west-2.amazonaws.com/197506_9acf32ccbfe3b07a3ab126319c59241de9629e7a20160825-29859-5maerj.png)
- ωL
- ωL2π
- ωL
- ωL4π2
- 3.6
- 3.6×10−6
- 3.6×10−11
- 3.6×10−4
Two strings A and B, made of same material, are stretched by same tension. The radius of string A is double the radius of B. A transverse wave travels on A with speed vA and on B with speed vB. The ratio (vAvB) is
12
2
14
4
- 5 m/s, 2.24 m/s
- 10 m/s, 3.23 m/s
- 7.5 m/s, 1.2 m/s
- 2.25 m/s, 5 m/s
- 4.9×109 dyne/cm2
- 9.8×109 dyne/cm2
- 4.9×1011 dyne/cm2
- 9.8×1011 dyne/cm2
y=10sin((30t−2x)+π4)
where x and y are in meter and t in sec. The velocity of wave is
- 10 m/s along +ve x− axis
- 20 m/s along −ve x− axis
- 15 m/s along +ve x− axis
- 15 m/s along −ve x− axis
When one object is at its highest point, the another one is at its lowest point. Consider that objects are always within a single cycle of wave, the speed of wave is
(Assume transverse surface waves)
- 2.5 m/s
- 103 m/s
- 12 m/s
- 203 m/s
- √gL2
- √gL5
- √gL3
- √gL4
- 5 m/s, 2.24 m/s
- 10 m/s, 3.23 m/s
- 7.5 m/s, 1.2 m/s
- 2.25 m/s, 5 m/s
y=4sin[π2(8t−x8)]. If x and y are measured in cm and t is in seconds, then velocity of wave is :
- 64 cm/s along −x direction
- 32 cm/s along −x direction
- 32 cm/s along +x direction
- 64 cm/s along +x direction
- √gL2
- √gL5
- √gL3
- √gL4
- ωL
- ωL2π
- ωLπ
- ωL4π2
The extension in a string, obeying Hook's law, is x. The speed of sound in the stretched string is v. If the extension in the string is increased to 1.5 x, the speed of sound will be :
1.22 v
0.61 v
1.50 v
0.75 v
- c=1πa
- c=πa
- b=ac
- b=1ac
- ωR
- 2ωR
- 3ωR
- Zero
The extension in a string, obeying Hook's law, is x. The speed of sound in the stretched string is v. If the extension in the string is increased to 1.5 x, the speed of sound will be :
1.22 v
0.61 v
1.50 v
0.75 v
- Amplitude of wave <λ2π
- Amplitude of wave >λ2π
- Amplitude of wave <λ
- Amplitude of wave >λπ
- ωL
- ωL2π
- ωLπ
- \N
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1052867/original_36.png)
- 620697 s
- 434205 s
- 2 s
- 0.2 s
When one object is at its highest point, the another one is at its lowest point. Consider that objects are always within a single cycle of wave, the speed of wave is
(Assume transverse surface waves)
- 2.5 m/s
- 103 m/s
- 12 m/s
- 203 m/s
A wave moves with speed 300 m/s on a wire which is under a tension of 500 N. Find how much the tension must be changed to increase the speed to 312 m/s?
6.67 N
7.12 N
8.34 N
9.12 N
y(x, t)=Asin2π(vt−xλ)
If the maximum particle velocity is three times the wave velocity, the wavelength λ of the wave is
- πA3
- 2πA3
- πA
- πA2
- 5 m/s, 2.24 m/s
- 10 m/s, 3.23 m/s
- 7.5 m/s, 1.2 m/s
- 2.25 m/s, 5 m/s
Two blocks of masses 40 kg and 20 kg are connected by a wire that has a linear mass density of 1 g/m. These blocks are being pulled across horizontal frictionless floor by horizontal force F that is applied to 20 kg block. A transverse wave travels on the wave between the blocks with a speed of 400 m/s (relative to the wire). The mass of the wire is negligible compared to the mass of the blocks. The magnitude of F is
160 N
240 N
320 N
400 N