PHYSICS- Radiation Questions and Answers
Radiation questions with answers are an essential part of physics aptitude questions and answers for exams like NEET, SSC, and RRB. Radiation involves the emission and transfer of energy through electromagnetic waves or particles. Understanding concepts such as types of radiation, radioactive decay, and safety measures helps in solving both theoretical and numerical questions. This article includes practice questions with explanations to enhance your grasp of radiation physics and improve your competitive exam readiness.
PHYSICS- Radiation
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25 questions
1. Which of the following is not a type of radioactive radiation?
- Alpha rays
- Beta rays
- Gamma rays
- Infrared rays
2. Who discovered radioactivity?
- Wilhelm Roentgen
- Henri Becquerel
- Marie Curie
- J.J. Thomson
3. Which type of radiation has the greatest penetrating power?
- Alpha rays
- Beta rays
- Gamma rays
- Cathode rays
4. Which particle is emitted in alpha radiation?
- Electron
- Proton
- Helium nucleus
- Neutron
5. What is the charge on a beta particle?
- Positive
- Negative
- Neutral
- Double positive
7. The intensity of radiation decreases with:
- Distance
- Time
- Shielding
- All of these
8. Gamma rays are similar in nature to:
- Sound waves
- Light waves
- Beta particles
- Neutrons
9. Radioactive elements decay into stable elements by:
- Combustion
- Fusion
- Radioactive decay
- Conduction
10. Half-life of a radioactive element is the time in which:
- Half of the substance decays
- All decays
- Doubles in mass
- Starts emitting