Atomic StructureHard
Question
The half-life ofg the radioactive radon is 3.8 days. The time, at the end of which 1/20t of the radon sample will remail undecayed, is (given log10e = 0.4343)
Options
A.3.8 days
B.16.5 days
C.33 days
D.76 days
Solution
Using N = N0e-λt
where
∴ 
Solving this equation with the help of given data we find :
t = 16.5 days
∴ Correct option is (b).
where
∴ Solving this equation with the help of given data we find :
t = 16.5 days
∴ Correct option is (b).
Create a free account to view solution
View Solution FreeMore Atomic Structure Questions
The maximum kinetic energy of photoelectrons emitted from a surface is $4 \text{ eV}$ when photons of energy $6 \text{ e...The transtion from the state n = 4 to n = 3 in a hydrogen like atom results in ultraviolet radiation. Infrared radiation...The surface of zone material is radiated in turn by waves of 10λ = 350nmand 540 nm respectively. The ratio of the s...Hydrogen atom is excited from ground state toanother state with principal quantum numberequal to 4. Then the number of s...For an electron in the second orbit of hydrogen, the moment of momentum as per Bohr′s model is...