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Physics

Physics
Hot springs are heated geothermally by underlying

Mitula
Water
None of these
Magma

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Physics
Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from

northeast
southeast
east
west

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Physics
A mirage occurs because of

Interference of light
Total internal reflection by layers of air
Diffraction of light
Reflection by hot ground

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Physics
An instrument that records earthquakes is

Ergograph
Seismograph
Ediograph
Thermograph

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Physics
The frequency of ultrasound wave is typically

Above 20 kHz
Below 20 kHz
Above 20,000 kHz
Below 02 kHz

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Physics
The audio signals of TV are

Amplitude modulated
Unmodulated
Velocity modulated
Frequency modulated

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