Back to ATOMS
JEE PHYSICS MCQ: ATOMS
1
Medium
1 of 1
Understanding
+4 | -1
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.
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.
View answer and explanation
Correct option: B
A, B and E
Option B is correct. Atoms emit characteristic spectra, electrons revolve in stationary orbits, and radioactivity indicates nuclear instability, making A, B, and E correct.
More Questions from ATOMS
Practice All Chapter MCQs →
The de-Broglie wavelength of an electron in the first Bohr orbit is
The volume occupied by an atom is greater than the volume of the nucleus by a factor of about
For a hydrogen atom, when electron jump from to , then wave length of radiation emitted found to be . Then, for which transition of electron of a 'He' atom, the wavelength of radiation emitted will be equal to ' '.
Energy of characteristic X-ray is a consequence of
Taking Rydberg’s constant , first and second wavelength of Balmer series in hydrogen spectrum is
When hydrogen atom is in its first excited level, its radius is its ground state radius