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Physics

Physics
A micron is equal to

0.01 mm
0.1 mm
0.0001 mm
0.001 mm

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Physics
Which of the following produces more severe burns ?

Melting iceberg
Boiling water
Steam
Hot water

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Physics
In AC circuits, AC meters measure

Rms values
Mean square values
Peak values
Mean values

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Physics
When an electric bulb breaks, there is an explosive sound. That is due to

None of these
The air outside rushing in to fill the vacuum inside the bulb
The compressed gases inside rushing out suddenly
The chemical reaction between the gases inside the bulb

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Physics
What is the unit of the physical quantity Entropy?

Newton per kelvin
Watt per kelvin
Joule per kelvin
Pascal per kelvin

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Physics
The device used for measuring the wavelength of X-rays is

Bragg Spectrometer
G.M. Counter
Cyclotron
Mass Spectrometer

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