Exercise: General Science

Questions for: General Science

The age of most ancient geological formations is estimated by
A:
Ra - Si method
B:
Potassium - argon method
C:
C14 method
D:
Uranium - lead method
Answer: D
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The isotope of uranium capable of sustaining chain reaction is
A:
U-235
B:
U-245
C:
U-239
D:
U-238
Answer: A
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Which of the following has a least penetrating power?
A:
All have same penetrating power
B:
Beta Particles
C:
Alpha particles
D:
Gamma rays
Answer: C
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What is the wavelength of visible spectrum?
A:
8500 - 9800 angstrom
B:
7800 - 8000 angstrom
C:
3900 - 7600 angstrom
D:
1300 - 3000 angstrom
Answer: C
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Which of the following shows the masses of the three elementary particles in decreasing order?
A:
Leptons, Baryons, Mesons
B:
Mesons, Baryons, Leptons
C:
Baryons, Mesons, Leptons
D:
Leptons, Mesons Baryons
Answer: C
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