Unit 18 MCQ from Exercise
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Physics 10th Class English Medium Unit 18
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Question 1 of 9
1. Question
Isotopes are atoms of same element with different
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Question 2 of 9
2. Question
One of the isotopes of uranium
. The number of neutrons in this isotope isCorrect
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Question 3 of 9
3. Question
Which among the following radiations has more penetrating power?
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Question 4 of 9
4. Question
What happens to the atomic number of an element which emits one alpha
particle?Correct
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Question 5 of 9
5. Question
The half-life of a certain isotope is 1 day. What is the quantity of the isotope
after 2 days?Correct
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Question 6 of 9
6. Question
When Uranium (92 protons) ejects a beta particle, how many protons will be in the
remaining nucleus?Correct
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Question 7 of 9
7. Question
Release of energy by the Sun is due to
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Question 8 of 9
8. Question
When a heavy nucleus splits into two lighter nuclei, the process would
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Question 9 of 9
9. Question
The reason carbon-dating works is that
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