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Physics

Physics
An object of 10 kg is moving with a speed of 2 m/s. The kinetic energy of the object is

10 J
25 J
20 J
40 J

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Physics
Quality of transmission depends upon

Nature of signal only
Nature of medium only
Both (A) and (B)
Neither A nor B

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Physics
An Electric generator is based on which of the following scientific principles?

Newton's Law of Motion
Faraday's law of Electromagnetic Induction
Laws of Thermodynamics
Super Conductivity

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Physics
Ventilators are provided near the ceiling of the room because

These provide some sunlight in the room
These do not look nice in the lower part
These provide cross ventilation in the room
The exhaled warmer air rises up and goes out

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Physics
At what temperature (in Fahrenheit) pure water freezes?

37
32
48

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Physics
Light travels at the fastest speed in:

water
vacuum
hydrogen
glass

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