EASY
12th ICSE
IMPORTANT
Earn 100

Define half-life of a radioactive substance.

Important Questions on Radioactivity

EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 15 - Radioactivity>QUESTIONS>Q 24

Half-life of a certain radioactive element is 3.465 days. Find its disintegration constant.

EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 15 - Radioactivity>QUESTIONS>Q 25

Will the number of radioactive particles emitted by an element be same in equal time-intervals? Why?

EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 15 - Radioactivity>QUESTIONS>Q 26
How are average life and decay constant related?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 15 - Radioactivity>QUESTIONS>Q 27
What is one curie?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 15 - Radioactivity>QUESTIONS>Q 28
What is the SI unit of decay rate?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 15 - Radioactivity>QUESTIONS>Q 29
What do you mean by ‘radiation hazards’?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 15 - Radioactivity>QUESTIONS>Q 30
What is Roentgen R?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 15 - Radioactivity>QUESTIONS>Q 31
Express radiation hazards in terms of R.