Nuclei - Online Test
Q1. The mean binding energy per nucleon in the nucleus of an atom is nearly
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. The process of fusion is used in the construction of
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. The energy released when 1 a.m.u. of mass is completely converted into energy is
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. In a nuclear reaction which of the following is conserved
Answer : Option D
Explaination / Solution:
No Explaination.
Q5.
The end product of the decay of .The number of alpha and beta particles emitted are
Answer : Option C
Explaination / Solution:
No Explaination.
Q6. If 10 of a substance decays in 10 days, then approximate percentage of substance left after 24 days is
Answer : Option B
Explaination / Solution:
No Explaination.
Q7. Half life of a substance is 20 minutes. What is the time between 33 decay and 67 decay?
Answer : Option C
Explaination / Solution:
No Explaination.
Q8.
At a given time there are 25 undecayed nuclei in a sample. After 10 seconds number of undecayed nuclei reduces to 12.5. Then mean life of the nuclei will be about
Answer : Option D
Explaination / Solution:
No Explaination.
Q9.
90 of a radioactive sample is left undisintegrated after time τ has elapsed, what percentage of initial sample will decay in a total time?
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. A radio-active element has half life of 15 yrs. What is the fraction that will decay in 30 yrs?.
Answer : Option B
Explaination / Solution:
No Explaination.
