Related Questions

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
Who discovered radioactivity?
A Max Planck
B James Clerk Maxwell
C Henri Becquerel
D Heinrich Hertz
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
The unit of radioactivity is
A Electron volt
B Electron ampere
C Curie
D MV
The phenomenon of radioactivity was discovered by
A Madam Curie
B Bacquerrel
C Roentgen
D J.J. Thomson
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
Which of the followings is not a right isotope of Hydrogen?
A Hydrogen-7
B Protium
C Deuterium
D None of these
Isotope bone scanning can detect
A Stress fracture
B Reflex sympathetic dystrophy
C Hypertrophic osteoarthoropathy
D Osteomalacia
E Osteoporosis
Radioactive Isotope
A Helps in bone scan
B Capable to emit radiation
C Cannot convert to stable isotope
D Safe in pregnancy
E Not suitable for sterilization of medical instruments

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