Physics · 2021
JEE Main · 27 July 2021, Shift 2 · Q7
Consider the following statements: A. Atoms of each element emit characteristics spectrum. B. According to Bohr's Postulate, an electron in a…
Consider the following statements :
A. Atoms of each element emit characteristics 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 :
Official answer
(1)
A, B and E only
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.