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Physics

Physics
The density of water is 1 g/cc. This is strictly valid at

25°C
4°C
100°C
0°C

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Physics
Mach number is used in connection with the speed of

aircraft
ships
spacecraft
sound

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Physics
The component used for tuning a radio is basically a variable

Inductor
Resisto
Transformer
Condenser

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Physics
Vegetables are cooked in lesser time by adding a pinch of salt while cooking because

Latent heat of vaporization of water increases
Boiling point of water decreases
Boiling point of water increases
Latent heat of vaporization of water decreases

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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
A man stands in a lift which accelerates upwards. The resultant reaction force on the floor of the lift is

Less than the weight of the man
Same as the weight of the man
Zero
Greater than the weight of the man

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