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Physics

Physics
0°K is equivalent to

0°C
– 273°C
100°C
273°C

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Physics
Which of the following is a device designed to protect electrical devices from voltage spikes?

Current unloader
Surge protector
Voltage unloader
Heat protector

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Physics
A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole ?

Remain constant
Increase
Dacrease
Will increase first and then dcrease

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Physics
Temperature of distant luminous bodies can be determined by

Colour thermometers
Gas thermometers
Mercury thermometers
Pyrometers

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Physics
Blowing Air with open pipe is an example of :

Isothermal process
Adiabatic process
Isochroric process
Isobaric process

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Physics
Safety fuse wire used in domestic electrical appliances is made of metal of low

Conductance
Resistance
Specific gravity
Melting point

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