Related Questions

Unit of radioactivity is
A barn
B fermi
C angstrom
D Curie
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 of an isotope is expressed in
A Barns
B MeV
C Curie
D Ergs
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 phenomenon of radioactivity was discovered by
A Madam Curie
B Bacquerrel
C Roentgen
D J.J. Thomson
Radioactivity is measured by
A GM counter
B Polarimeter
C Calorimeter
D Colorimeter
The price per unit of a product increases by 25% . The actual Taka increase in the unit price is Tk.1.25. What was the unit price in Taka before the price increase?
A 5
B 7.5
C 6.25
D 8.75
The price per unit of product increased by 25% The actual taka increase in the unit price was Tk. 1.25. What was the unit price in Taka, before the price increase?
A 5.00
B 6.25
C 7.50
D 8.75
The price per unit of product increased by 25% The actual taka increase in the unit price was Tk. 1.25. What was the unit price in Taka , before the price increase?
A 5.00
B 6.25
C 7.50
D 8.75

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