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When the source of light is at very large distance, the shape of wavefront is:

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If $\lambda=400 nm$, its value in angstrom unit (=$10^{-10}m$) m is given as:

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Speed of light in vacuum depends upon:

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In case of point source of light, shape of wavelength is:

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Huygen principle is used to determine:

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Angle between ray of light and the corresponding wavefront is:

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The locus of all the points in the same phase of vibration is called:

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Monochromatic light means waves of:

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Frequency of red color as compared to that of violet color is:

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Wavelength of red color as compared to that of violet color is:

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Which one of the following can act approximately as a source of monochromatic light:

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Electromagnetic waves transport:

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Wavelength of light, on the average, is given by:

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Light has:

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What is the time period of the wave $\rm{\sin(wt)}$?

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Transverse waves can transfer on their energy, in

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What will be impact on the frequency of a simple pendulum if the length of pendulum is halved and value of gravity is doubled?

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In SHM _________ is conserved

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Which of the following is true for a wave entering a denser medium?

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Which of the following changes must when a wave changes its medium?

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If a spring with spring constant k is halved, the new spring constant of each part will be

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A simple pendulum suspended from the ceiling of a lift has time period T when the lift is at rest. When the lift falls freely

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In Damping

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According to the Hook's law, strain is directly proportional to stress

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What is the kinetic energy at the extreme position during SHM?

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