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JEE-MAIN SERIES
Physics

Decay Rate

3 previous year questions.

Volume: 3 Ques
Yield: Medium

High-Yield Trend

1
2024
2
2023

Chapter Questions
3 MCQs

01
PYQ 2023
medium
physics ID: jee-main

A free neutron decays into a proton but a free proton does not decay into neutron. This is because

1
neutron is an uncharged particle
2
neutron has larger rest mass than proton
3
neutron is a composite particle made of a proton and an electron
4
proton is a charged particle
02
PYQ 2023
medium
physics ID: jee-main

The decay constant for a radioactive nuclide is . Atomic weight of the substance is 60 g mole−1. ( ). The activity of 1.0 µg of the substance is _____ Bq.

03
PYQ 2024
medium
physics ID: jee-main
If the radius of earth is reduced to three-fourth of its present value without change in its mass then value of duration of the day of earth will be ______ hours 30 minutes.

About Decay Rate - JEE-MAIN

Decay Rate is a vital chapter for JEE-MAIN aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

Frequently Asked Questions

Why focus on Decay Rate PYQs?

Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.

How to best use this analysis?

Review the topic breakdown to see which sub-topics within Decay Rate carry the most weight. Then, tackle the questions iteratively to solidify your understanding.