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Q1121

Which is a correct way to measure wavelength?

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Q1122

If the phase difference between two points is 120° for a wave with velocity of 360 m/s and frequency 500 Hz, then path difference between the two points is

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Q1123

Why are we able to hear short wave broadcasts better than long wave broadcasts ?

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Q1124

The frequency of ultrasound wave is typically

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Q1125

Which of the following has the highest frequency?

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Q1126

Matter waves are

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Q1127

Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent nodes is :

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Q1128

Intensity of any wave is proportional to which of the following?

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Q1129

If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound?

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Q1130

Which one of the following statements with regard to Jet stream, an upper level tropospheric wave, is not correct?

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Q1131

When a stone is thrown in the calm water of a pond the waves produced on the surface of water in the pond are

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Q1132

When a light wave is reflected from a mirror, there is a change in its

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Q1133

A doppler effect occurs when a source of sound moves

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Q1134

Stationary wave is formed by

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Q1135

Ultrasound devices operate with minimum frequency from

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Q1136

Which of the following is not a transverse wave?

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Q1137

What is the name of the device used to convert alternating current into direct current ?

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Q1138

A Step-Up transformer increases

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Q1139

A transformer

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Q1140

In AC circuits, AC meters measure

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