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Physics

Physics
Addition of suitable impurities into semiconductor, is called

Mixing
Forming
Diluting
Doping

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Physics
When a constant force acts on an object with a mass of 8 kg for a duration of 3 s. it increases the object's velocity from 4 m/s to 6 m/s . What is the magnitude of the applied force?

4.33 N
3.33 N
6.33 N
5.33 N

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Physics
Which physicists is the writer of the book 'A Brief History of Time'?

Albert Einstein
Hans Bethe
Isaac Newton
Stephen Hawking

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Physics
When a body falls from an aeroplane, there is increase in its

Kinetic energy
Acceleration
Potential energy
Mass

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Physics
A bottle of sodalime is grasped by the neck and swung briskly in a vertical circle, Near which portion of the bottle do the bubbles collect?

In the middle of the bottom
Near the neck
Bubbles remain distributed uniformly
Near the bottom

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Physics
Light year is a unit of

Intensity of light
Light
Time
Distance

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