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Physics

Physics
Who defined the law of gravitation ?

Faraday
Archimedes
Newton
Galileo

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Physics
After removing two electrons from helium atom it become?

Gama particle
X rays
Alpha particle
UV rays

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Physics
Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

3P
2p/ 3
P/3
P

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Physics
A voltaic cell converts chemical energy to

Mechanical energy
Heat energy
Electrical energy
Light energy

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Physics
The minimum number of geostationary satellites needed for uninterrupted global coverage is :

2
1
4
3

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Physics
The odometer guage indicates

The depth of the ocean
Frequency of the wave
Pitch length
The distance travelled by a vehicle

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