For effective nuclear forces, the distance should be
For effective nuclear forces, the distance should be
- A
${10^{ - 10}}m$
- B
${10^{ - 13}}m$
- C
${10^{ - 15}}m$
- D
${10^{ - 20}}m$
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$1 a.m.u.$ is equivalent to
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The ratio of mass densities of nuclei of $^{40}Ca$ and $^{16}O$ is close to
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- [JEE MAIN 2019]
The mass of a neutron is the same as that of
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Consider the following statements :
$A.$ Atoms of each element emit characterstics spectrum.
$B.$ According to Bohr's Postulate, an electron in a hydrogen atom, revolves in a certain stationary orbit.
$C.$ The density of nuclear matter depends on the size of the nucleus.
$D.$ A free neutron is stable but a free proton decay is possible.
$E.$ Radioactivity is an indication of the instability of nuclei.
Choose the correct answer from the options given below
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$A.$ Atoms of each element emit characterstics spectrum.
$B.$ According to Bohr's Postulate, an electron in a hydrogen atom, revolves in a certain stationary orbit.
$C.$ The density of nuclear matter depends on the size of the nucleus.
$D.$ A free neutron is stable but a free proton decay is possible.
$E.$ Radioactivity is an indication of the instability of nuclei.
Choose the correct answer from the options given below
- [JEE MAIN 2021]
Explain isotopes, isobar, isotones and isomers by giving examples.
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