Related Questions

Radioactivity is a phenomenon of the spontaneous emission of
A protons (alpha particles)
B electrons (beta particles)
C gamma rays (short wave electromagnetic waves)
D All of the above
Who discovered radioactivity?
A Max Planck
B James Clerk Maxwell
C Henri Becquerel
D Heinrich Hertz
240 radioactive grams of goo loses half its radioactivity every 10 days. How many grams of radioactive goo is left in 40 days?
A 120
B 60
C 15
D none
Radioactivity of an isotope is expressed in
A Barns
B MeV
C Curie
D Ergs
The unit of radioactivity is
A Electron volt
B Electron ampere
C Curie
D MV
Unit of radioactivity is
A barn
B fermi
C angstrom
D Curie
Radioactivity is measured by
A GM counter
B Polarimeter
C Calorimeter
D Colorimeter
Endoscope, a technique used to explore the stomach or other inner parts of the body is based on the phenomenon of _______
A total internal reflection
B interference
C diffraction
D polarization
The plural form of phenomenon is -
A Phenomenons
B Phenomena
C Phenomenas
D Phenomenos
The plural form phenomenon is
A phenomenenos
B phenomenons
C phennomena
D phenomenas

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