SATHEE: Atoms And Nuclei Question 44

Atoms And Nuclei Question 44

Question: In terms of Rydberg’s constant R, the wave number of the first Balmer line is [MP PMT 1996]

Options:

A) R

B) 3R

C) $\frac{5 R}{36}$

D) $\frac{8 R}{9}$

Show Answer

Answer:

Correct Answer: C

Solution:

Wave number $= \frac{1}{λ} = R (\frac{1}{n_{1}^{2}} - \frac{1}{n_{2}^{2}})$ For first Balmer line n1= 2, n2=3
$∴$ Wave number $= R (\frac{1}{2^{2}} - \frac{1}{3^{2}}) = R (\frac{9 - 4}{9 \times 4}) = \frac{5 R}{36}$

Atoms And Nuclei Question 44

Question: In terms of Rydberg’s constant R, the wave number of the first Balmer line is [MP PMT 1996]

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

Atoms And Nuclei Question 44

Question: In terms of Rydberg’s constant R, the wave number of the first Balmer line is [MP PMT 1996]

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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