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Physics

Physics
A wave with high amplitude have

Low pitch
Low energy
High energy
High pitch

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Physics
What is another name for energy of motion?

Rotational energy
Motional energy
Potential energy
Kinetic energy

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Physics
Heat from the Sun reaches the Earth by

Reflection
Conduction
Convection
Radiation

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Physics
For a freely falling body, the sum of kinetic energy and potential energy is always

Variable
Same
Zero
Unity

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Physics
A body of mass 2 kg is thrown upward with initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be : (g = 10 m/s2)

200 J
400 J
0 J
100 J

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Physics
The Laser is a beam of radiations which are

Coherent and non-monochromatic
Non-coherent and monochromatic
Non-coherent and non-monochromatic
Coherent and monochromatic

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