Search
Subjects
BGCSE
Biology
Chemistry
Combined Science
Physics
BJC
Health Science
General Science
Social Studies
2021 BGCSE Physics Paper-1 Question-20
Questions
Q-1
Q-2
Q-3
Q-4
Q-5
Q-6
Q-7
Q-8
Q-9
Q-10
Q-11
Q-12
Q-13
Q-14
Q-15
Q-16
Q-17
Q-18
Q-19
Q-20
Q-21
Q-22
Q-23
Q-24
Q-25
Q-26
Q-27
Q-28
Q-29
Q-30
Q-31
Q-32
Q-33
Q-34
Q-35
Q-36
Q-37
Q-38
Q-39
Q-40
Q-41
Q-42
Q-43
Q-44
Q-45
Q-46
Q-47
Q-48
Q-49
Q-50
The graph below shows how the count rate of a certain radioactive isotope changes with time, as it decays. what is the half-life of the radioisotope?
2 days
4 days
10 days
20 days
Submit
Next
