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Which physical quantity is measured in 'siemens'?

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Hydroscope is an instrument that shows changes in:

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Unit of impedance is ________

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Stress can be defined as ________ quantity.

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In spherical polar coordinates (l, q, a), q denotes the polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by

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Two vectors are said to be equal if

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Which of the following is a vector quantity?

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Which of the following is not a vector quantity?

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Which of the following is not a vector quantity ?

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These waves cannot be transmitted through vacuum.

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In a ________ the wave particles of the medium vibrate in a direction perpendicular to the direction of wave propagation

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Which of the following is the unit of perceived loudness of sound ?

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The component used for tuning a radio is basically a variable

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A wave with high amplitude have

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A standing wave occurs when

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The wavelength of a wave is the distance between

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Longitudinal waves cannot travel through

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Flight Recorder is technically called :

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A gradual increase in loudness is known as

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Which of the following property of sound is affected by change in air temperature?

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