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A steel wire of length 64 cm weighs 5 g....

A steel wire of length 64 cm weighs 5 g. If it is stretched by a force of 8 N, what would be the speed of a transverse wave passing on it ?

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The correct Answer is:
A, B, C
Mass=5 gm
length =64 cm
`:. Mass per unit length
`=5/64 gm/cm `
`:. Tension, T=8N`
`=8xx10^5dyne`
`V=sqrt((T/m))`
`=sqrt((8x10^5xx64)/5)`
`=3200cm/s=32m/s`
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HC VERMA-WAVE MOTION AND WAVES ON A STRING-Exercises
  1. Figure shows a plot of the transverse displacements of the particles ...

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  2. A wave travelling on a string at a speed of 10 ms^-1 causes each parti...

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  3. A steel wire of length 64 cm weighs 5 g. If it is stretched by a force...

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  4. A string of length 20 cm and linear mass density 0.4 g//cm is fixed a...

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  5. A string of linear mass density 0.5 g cm^-1 and a total length 30 cm i...

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  6. Two wires of different densities but same area of cross section are s...

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  7. A transverse wave described by y=(0.02m)sin[(1.0m^-1)x+(30s^-1)t] ...

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  8. A travelling wave is produced on a long horizontal string by vibrating...

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  9. A string of length 40 cm and weighing 10 g is attached to a spring at ...

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  10. Two blocks each having a mass of 3.2 kg are connected by a wire CD and...

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  11. In the arrangement shown in figure, the string has a mass of 4.5 g. Ho...

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  12. A 4.0 kg block is suspended from the ceiling of an elevator through a ...

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  13. A heavy ball is suspended from the ceiling of a motor car through a li...

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  14. A circular loop of string rotates about its axis on a frictionless hor...

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  15. A heavy but uniform rope of lenth L is suspended from a ceiling. (a) W...

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  16. Two long strings A and B, each having linear mass density 1.2×10−2kgm−...

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  17. A transverse wave of amplitude 0.50 mm and frequency 100 Hz is produce...

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  18. A 200 Hz wave with amplitude 1 mm travels on a long string of linear m...

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  19. A tuning fork of frequency 440 Hz is attached to a long string of line...

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  20. Two waves, travelling in the same direction through the same region, h...

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