SATHEE: Atoms And Nuclei Question 16

Atoms And Nuclei Question 16

Question: The kinetic energy of the electron in an orbit of radius r in hydrogen atom is (e = electronic charge [MP PMT 1987]

Options:

A) $\frac{e^{2}}{r^{2}}$

B) $\frac{e^{2}}{2 r}$

C) $\frac{e^{2}}{r}$

D) $\frac{e^{2}}{2 r^{2}}$

Show Answer

Answer:

Correct Answer: B

Solution:

Potential energy of electron in nth orbit of radius r in H-atom $U = - \frac{e^{2}}{r}$ (in CGS) ∵ K.E. $= \frac{1}{2} | P . E . |$
Þ $K = \frac{e^{2}}{2 r}$

Atoms And Nuclei Question 16

Question: The kinetic energy of the electron in an orbit of radius r in hydrogen atom is (e = electronic charge [MP PMT 1987]

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

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Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Atoms And Nuclei Question 16

Question: The kinetic energy of the electron in an orbit of radius r in hydrogen atom is (e = electronic charge [MP PMT 1987]

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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