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Physics

Physics
Addition of suitable impurities into semiconductor, is called

Doping
Diluting
Forming
Mixing

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Physics
Which one of the following animals can hear ultrasonic sound ?

Squirrel
Cat
Bat
Rat

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Physics
A person does some work of 1,000 J in 2 s. His power will be ________

1000W
50W
500W
25W

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Physics
Who is the first person to define speed

Kepler
Newton
Galileo
Ptolemy

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Physics
The combined gas law relates which of the following?

Volume & Temperature
Temperature & Pressure
Volume & Pressure
Volume, Temperature & Pressure

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Physics
Alternating current is converted into direct current by a

Rectifier
Oscillator
Transformer
Dynamo

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