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Q. No.Subtopic: Â Nucleus |
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The nuclear radius of which of the following nuclei is approximately twice that of deuterium \((_1\mathrm{H}^2)\)?
| 1. | \(_2\mathrm{He}^4\) | 2. | \(_3\mathrm{Li}^8\) |
| 3. | \(_4\mathrm{Be}^8\) | 4. | \(_8\mathrm{O}^{16}\) |
Subtopic: Â Nucleus |
From NCERT
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Given below are two statements:
| Assertion (A): | The size of nuclei of various elements can be measured more accurately by performing Rutherford-type scattering experiments in which fast electrons, instead of \(\alpha-\)particles, bombard the target element. |
| Reason (R): | Higher energy \(\alpha-\)particles begin to get affected by the nuclear forces as they approach closer to the nucleus. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Â Nucleus |
 57%
From NCERT
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If a nucleus is divided in the ratio of \(1:2^{1/3},\) what is the ratio of the velocities of the resulting parts?
1. \(2\)
2. \(2^{1/3}\)
3. \(2^{2/3}\)
4. \(2^{(-1/3)}\)
1. \(2\)
2. \(2^{1/3}\)
3. \(2^{2/3}\)
4. \(2^{(-1/3)}\)
Subtopic: Â Nucleus |
 59%
From NCERT
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