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Physics

Physics
Which of the following device is used to measure humidity?

Psycho Meter
Hygrometer
Anemometer
Hydrometer

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Physics
Curie point is the temperature at which

A metal loses magnetic properties.
Matter becomes radioactive
A metal loses conductivity
Transmutation of metal occurs.

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Physics
Tape recorder should not be kept near one of the following things :

Clock
Magnet
Electrical switchboard
Radio

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Physics
When a steel ball is placed on the surface of mercury, it does not sink because

Of the surface tension of mercury
Mercury is a semisolid
The density of mercury is greater than that of steel
Of the high viscosity of mercury

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Physics
When a bar magnet is cut into two equal halves, the pole strength of each piece –

Remains the same
Becomes half
Becomes double
Becomes zero

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Physics
At boiling point of liquids, its

Temperature increases
Atmospheric pressure increases
Vapour pressure decreases
Temperature remains constant

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