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Physics

Physics
Magnetism at the centre of a bar magnet is

minimum
zero
minimum or maximum
maximum

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Physics
Ozone layer above the surface of Earth provides a shield against

Ultra-violet rays
Infra-red rays
Gamma rays
X-rays

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Physics
For Gamma radiation, what stops its penetrating abilities?

Lead
All of these
Steal
Concrete

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Physics
One thousand microns is equal to

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

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Physics
The purpose of choke in a fluorescent lamp is :

To decrease the resistance
To decrease the current flow
Ro decrease the voltage momentarily
To increase the current flow

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Physics
Radio activity is due to

Stable nucleus
Unstable nucleus
Stable electronic configu-ration
Stable electronic configu-ration

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MORE MCQ ON Physics

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