☰
Menu
← Back to shiwamsclass.com
← Website
Home
Free quizzes
Free mock tests
All mock tests
CBSE Class 10
CBSE Class 12
Bihar Board 12
JEE Main
JEE Advanced
Chapter-wise PYQ
CBSE Class 10 PYQ
CBSE Class 12 PYQ
Bihar Board 12 PYQ
JEE Main PYQ
JEE Advanced PYQ
Sign in
← shiwamsclass.com
← Bihar Board Class 12 PYQ
Nuclei
Bihar Board Class 12 · Physics · 30 past questions
Topic
Decay law, half-life and decay constant
2
Fission, fusion and reactors
0
Mass-energy and nuclear reactions
0
Nuclear composition and properties
0
Radioactive decay and displacement
0
Radioactivity basics and radiations
0
Level
Easy
2
Moderate
0
Year
2026
3
2025
3
2024
3
2023
4
2022
4
2021
4
2019
2
2018
1
2017
4
2 of 30 ·
show all
Q23
2019
The time in which radioactive substance becomes half of its initial amount is called
Try it →
Q24
2019
The decay constant of a radioactive substance is $5.2\times10^{-3}$ per year.
Try it →