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GENERAL SCIENCE

General Science
Mesons are found in

Laser beam
X-rays
Gamma rays
Cosmic rays

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General Science
Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material?

Plutonium
Radium
Thorium
Radan

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General Science
Which of the following shows the masses of the three elementary particles in decreasing order?

Mesons, Baryons, Leptons
Leptons, Mesons Baryons
Baryons, Mesons, Leptons
Leptons, Baryons, Mesons

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General Science
Which of the following has a least penetrating power?

Beta Particles
Alpha particles
Gamma rays
All have same penetrating power

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General Science
The isotope of uranium capable of sustaining chain reaction is

U-235
U-238
U-239
U-245

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