Adaptive Practice
Radioactivity
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Question 1 of 10
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Easy
What type of radiation is emitted when an unstable nucleus emits a helium nucleus?
Easy
Which of the following is NOT a property of gamma rays?
Easy
In the context of radioactivity, what does the term 'half-life' refer to?
Medium
Which Indian scientist is famous for pioneering work in radioactivity and won the Nobel Prize?
Medium
What happens to the atomic number and mass number of an atom when it emits a beta particle?
Medium
Which of the following materials is commonly used as a shield against beta radiation?
Hard
If a radioactive sample has a half-life of 5 years, how much of a 16 g sample remains after 15 years?
Medium
Which of the following is the correct sequence of penetrating power of radiations from lowest to highest?
Medium
Why is radioactive dating useful in archaeology, especially in India?
Hard
Which of the following statements about nuclear fission is correct?