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Physics

Physics
When water freezes its density

Decreases
Becomes Zero
Remains constant
Increases

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Physics
Bats can sense obstacles because they produce

Ultrasonic sound waves
Supersonic sound waves
Infrasonic sound waves
Micro sound waves

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Physics
The first law of thermodynamics is simply the case of

Charle's law
Newton's law of cooling
The law of heat exchange
The law of conservation of energy

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Physics
In a water lifting electric pump, we convert

Kinetic energy into Electrical energy
Electrical energy into Potential energy
Electrical energy into Kinetic energy
Kinetic energy into Potential energy

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Physics
What is the full form of "RADAR" ?

Radio Device and Ranging
Radio Detecting and Ranging
Radio Detect and Rangs
Region Device and Ranging

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Physics
Which of the following is an example of simple harmonic motion?

Motion of a ceiling fan
Simple pendulum motion
Earth spinning on its axis
Ball bouncing on floor

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