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Physics

Physics
The paramagnetic theory of magnetism applies to

Nickel
Mercury
Iron
Platinum

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Physics
Which of the following has the longest wavelength?

Visible radiation
Ultraviolet radiation
Infrared radiation
X-ray radiation

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Physics
Which best describes how air moves during convection?

Warm air falls down
Air always falls down
Cool air falls down
Cool air is replaced by warm air

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Physics
One thousand microns is equal to

10-6m
10-9m
10-3m
10-12m

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Physics
Period of oscillation of 3 cm microwaves in seconds is

1 × 1010
0.001
0.01
1 × 10–10

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Physics
Intensity of sound has

both subjective and objective existence
an object existence
a subject existence
no existence

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