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The equation of a progressive wave is ...

The equation of a progressive wave is
`y=0.4 sin (120 pit-(4pi)/5x)`
Where distance is in meters and time is in seconds. Calculate frequency and wavelength.

A

60 Hz, 2.5 m

B

30 Hz, 3 m

C

90 Hz, 2.5 m

D

60 Hz, 5 m

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The correct Answer is:
A
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MOTION-WAVES-EXERCISE -2 (Level -I) (Objective Problems JEE Main)
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  3. The equation y=A cos^(2) (2pi nt -2 pi (x)/(lambda)) represents a wave...

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  4. When a plane wave train transverses a medium, individual particles exe...

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  5. A sinusoidal progressive wave is generated in a string. It's equation ...

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  6. A transverse wave is described by the equation y=A sin [2pi(ft-x//la...

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  7. A wire is 4 m long and has a mass 0.2 kg. The wire is kept horizontall...

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  8. A string of 7 m length has a mass of 0.035 kg. If tension in the strin...

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  9. Three waves of equal frequencies having amplitudes 10 mu m, 4mu m and ...

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  10. In the figure the intensity of waves arriving at D from two coherent s...

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  11. Two pulses in a stretched string whose centres are initially 8 cm apar...

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  12. Equations of two progressive waves at a certain point in a medium are ...

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  13. there are three strings RP, Pqand QS as shown. Their mass and length a...

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  14. Two pulses in a stretched string whose centres are initially 8 cm apar...

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  15. Two waves represented by y1 =a sin omega t and y2 =a sin (omega t+phi...

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  16. A harmonic wave is travelling on string 1. At a junction with string 2...

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  17. A composite string is made up of two uniform strings having mass per ...

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  18. In the previous question, the percentage of power transmitted to the h...

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  19. A wave moving with constant speed on a uniform string passes the point...

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  20. A metallic wire of length l is held between two rigid supports. If the...

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