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PHYSICS

Physics
For Gamma radiation, what stops its penetrating abilities?

Concrete
All of these
Steal
Lead

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Physics
An atom bomb based upon the principal of ________

None of these
Nuclear fission
Nuclear fussion
Controlled chain reaction

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Physics
The damage of the human body due to radiation (X-rays or grays etc,) is measured in :

Roentgen
Rads
Curie
Rems

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Physics
Radio activity is due to

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

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Physics
What is the range of Strong Nuclear force?

None
Very short Nuclear size
Very short Subnuclear size
Infinite

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