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Physics

Physics
Resistance of human body in dry condition

1000 ohm
10 ohm
10000 ohm
100000 ohm

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Physics
Stars appears to move from east to west because

The earth rotates from east to west
The background of the stars moves from west to east
The earth rotates from west to east
All stars move from east to west

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Physics
Anemometer is used to measure

Wind direction
Wind velocity
Pressure gradient
Wind speed and time

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Physics
If a force acts upon two objects at rest, and having different masses for the same amount of time, then which one of the following will be the same for both the objects?

Acceleration
Velocity
Momentum
Kinetic Energy

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Physics
Which of the following is arranged in order of decreasing conductivity?

Aluminium, Silver, Copper, Steel
Copper, Silver, Aluminium, Steel
Copper, Aluminium, Steel, Silver
Silver, Copper, Aluminium, Steel

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Physics
A copper wire of radius r and length l has a resistance of R. A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be

4 R/5
5 R/4
5 R
R/5

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