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Physics

Physics
In MRI machine, which one of the following is used?

X-ray
Ultra-sound wave
Sound wave
Magnetic wave

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Physics
The absolute zero is a temperature at which ________

Molecular motion in a gas would cease
All gases become liquid
Water freezes
All gases become solid

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Physics
Which of the following causes adiabatic temperature changes in atmosphere?

Expansion and compression of the air
Deflection and advection
Partial absorption of solar radiation by the atmosphere
Latent heat of condensation

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Physics
Which colour has the highest energy?

Red
Blue
White
Violet

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Physics
The first law of thermodynamics is simply the case of

Newton's law of cooling
The law of conservation of energy
The law of heat exchange
Charle's law

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Physics
Which phase change is an example of an exothermic process?

Liquid to Solid
All listed here
Gas to Solid
Gas to Liquid

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