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Physics

Physics
The flow of thermal energy is called

Heat
Potential
Current
Voltage

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Physics
Magnetism in materials is due to

Circular motion of electrons
Electrons at rest
All neutrons at rest
Protons at rest

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Physics
A barometer is kept inside a bell jar. Air is slowly pumped out of the jar.

The mercury level starts rising
The mercury level starts falling
The mercury level does not change
The bell jar breaks up

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Physics
Which of the following device is best suited for measuring the temperature inside metallurgical furnaces?

Thermometer
Thermistor
Thermocouple
Pyrometer

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Physics
Negative acceleration is in the opposite direction of:

Velocity
Force
Momentum
Distance

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Physics
Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2

14 m/s
140 m/s
0.14 m/s
1.4 km/s

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