Practice NEET Physics Radioactivity MCQs Set 01 provided below. The MCQ Questions for NEET Radioactivity Physics with answers and follow the latest NEET/ NCERT and KVS patterns. Refer to more Chapter-wise MCQs for NEET NEET Physics and also download more latest study material for all subjects.
Test Your Skills: NEET Physics Radioactivity
NEET Physics students should review the 50 questions and answers to strengthen understanding of core concepts in Radioactivity.
NEET Physics Radioactivity Objective Questions
Question: Radioactivity is
a) all of the above
b) spontaneous
c) self disintegration process
d) irreversible process
Answer: all of the above
Question: Beta rays emitted by a radioactive material are
a) charged particles emitted by nucleus
b) neutral particles
c) the electrons orbiting around the nucleus
d) electromagnetic radiations
Answer: charged particles emitted by nucleus
Question: Which of the following is not a mode of a radioactive decay ?
a) Fusion
b) Positron emission
c) Electron capture
d) Alpha decay
Answer: Fusion
Question: A radioactive material undergoes decay by ejecting electrons. The electron ejected in this process is
a) the electron from the decay of a neutron
b) the electron present in the nucleus
c) an orbital electron
d) None of these
Answer: the electron from the decay of a neutron
Question: The rate of disintegration at a given instant, is directly proportional to the number of atoms present at that instant. This is the statement of
a) law of radioactive decay
b) half life
c) law of radioactive transformation
d) group displacement law
Answer: law of radioactive decay
Question: Half life of radioactive element depends upon
a) nature of element
b) pressure
c) temperature
d) amount of element present
Answer: nature of element
Question: A radioactive substance has a half life of four months. Three fourth of the substance will decay in
a) eight months
b) three months
c) four months
d) twelve months
Answer: eight months
Question: They decay constant of radium is 4.28 × 10–4 per year. Its half life will be
a) 1620 years
b) 1240 years
c) 2000 years
d) 63 years
Answer: 1620 years
Question: The half life of the radioactive substance is 40 days. The substance will disintegrate completely in
a) infinite time
b) 400 days
c) 40 days
d) 4000 days
Answer: infinite time
Question: A radioactive substance contains 10000 nuclei and its halflife period is 20 days. The number of nuclei present at the end of 10 days is
a) 7070
b) 9000
c) 8000
d) 7500
Answer: 7070
Multiple Choice Questions (MCQs) for NEET Physics Radioactivity
Download Multiple Choice Questions: Radioactivity (NEET Physics)
Utilize these MCQs for Radioactivity to test your mastery of the chapter efficiently. Formatted under recent NEET guidelines for NEET Physics, these multiple-choice exercises support steady learning. Working through these objective questions daily leads to better academic performance.
NCERT-Aligned MCQs for NEET Physics
Built strictly from the official NCERT book for NEET, these Physics objective questions highlight essential exam topics. Compare your final answers against our provided keys after practice. Reviewing our expert NCERT solutions for NEET Physics will further clarify concepts in Radioactivity.
Boost Speed and Accuracy in NEET Physics
To prepare for your exams you should also take the NEET Physics MCQ test for this chapter on our website. This will help you improve your speed and accuracy and it is also free for you. Regular revision of these Physics topics will make you an expert in all important chapters of your course.
FAQs
You can get most exhaustive NEET Physics Radioactivity MCQs Set 01 for free on StudiesToday.com. These MCQs for NEET Physics are updated for the 2026-27 academic session as per NEET examination standards.
Yes, our NEET Physics Radioactivity MCQs Set 01 include the latest type of questions, such as Assertion-Reasoning and Case-based MCQs. 50% of the NEET paper is now competency-based.
By solving our NEET Physics Radioactivity MCQs Set 01, NEET students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Physics.
Yes, Physics MCQs for NEET have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused NEET exams.
Yes, you can also access online interactive tests for NEET Physics Radioactivity MCQs Set 01 on StudiesToday.com as they provide instant answers and score to help you track your progress in Physics.