The radius of a nucleus $$(r)$$ is directly proportional to the cube-root of the number of nucleons $$(N).$$ Assume that the mass of a nucleon is fixed $$(m_n).$$ The density $$(\rho)$$ of a nucleus varies as:
1. $$N^3$$
2. $$N^1$$
3. $$N^0$$
4. $$N^{-1}$$
Subtopic: Â Nucleus |
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Two nuclei have their mass numbers in the ratio of $$1:3.$$ The ratio of their nuclear densities would be:
1. $$1:3$$
2. $$3:1$$
3. $$(3)^{1/3}:1$$
4. $$1:1$$

Subtopic: Â Nucleus |
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AIPMT - 2008
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A nucleus of mass number $$189$$ splits into two nuclei having mass numbers $$125$$ and $$64.$$ The ratio of the radius of two daughter nuclei respectively is:
 1 $$25:16$$ 2 $$1:1$$ 3 $$4:5$$ 4 $$5:4$$
Subtopic: Â Nucleus |
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NEET - 2022
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Given below are two statements:
 Assertion (A): The density of nucleus is much higher than that of ordinary matter. Reason (R): Most of the mass of the atom is concentrated in the nucleus while the size of this nucleus is almost $$10^5$$ times smaller.
 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 |
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Which, of the following particles, is unstable?
1. proton
2. neutron
3. electron
4. antineutrino
Subtopic: Â Nucleus |
From NCERT