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Physics

Physics
The pressure exerted by a 760 mm column of mercury at 0°C is known as

1 poise
1 pascal
1 atmosphere
1 bar

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Physics
One watt-hour is equivalent to

6.3 x 103 J
3.6 x 103 J
6.3 x 10-7 J
3.6 x 10-3 J

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Physics
Optical Fibre technology works on which of these principles of Physics?

Total internal reflection of Light
Bernoulli's Principle
Photoelectric effect
Newton's law of Motion

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Physics
The quantity that is not conserved in an inelastic collision is

Total Energy
Momentum
Kinetic Energy
All of these

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Physics
What colour does blue and yellow make?

Black
Red
Green
White

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Physics
A circular plate, a cube and a sphere, all made up of same material and having the samemass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling?

Cube
Circular plate
Sphere
All will cool at the same rate

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