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Physics

Physics
Weight of a body is maximum at the:

Equator
Tropics
Subtropics
Pole

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Physics
Which electromagnetic radiation is used for satellite communication ?

Radiowave
Millimeter wave
Ultraviolet
Infrared

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Physics
Ball bearings are used in cycles, scooters etc to

Reduce the friction between the wheel and the axle
Increase the friction between the wheel and the axle
Reduce the friction between ground and the whee
None of these

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Physics
Full form of CFL used in place of electric bulbs is

Constantan filament lamp
Closed fluorescent lamp
Compact fluorescent lamp
Closed filament lamp

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Physics
What is the unit of the physical quantity "Jerk"?

Meter per second square
Meter per second
Meter per second cube
Meter second

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Physics
A wire of copper having length I and area of cross-section A is taken and a current i is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

2P
< P
P
> P

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