Notifications
Clear all
If the wavelength of the electromagnetic radiation is increased to thrice the digital value, then what will be the percent change in the value of frequency of the electromagnetic radiation.
Structure of Atom
1
Posts
2
Users
0
Likes
780
Views
0
20/08/2021 10:32 am
Topic starter
If the wavelength of the electromagnetic radiation is increased to thrice the digital value, then what will be the percent change in the value of frequency of the electromagnetic radiation.
(a) Increases by 33%
(b) Decreases by 33%
(c) Increases by 66%
(d) Decreases by 66%
Answer
Add a comment
Add a comment
Topic Tags
1 Answer
0
20/08/2021 10:37 am
Answer is: (d) Decreases by 66%
Explanation:
v_{1} = \(\frac{c}{\lambda_1}\)
v_{2} = \(\frac{c}{\lambda_2}\) = \(\frac{c}{3\lambda_1}\)
%change in frequency = \(\frac{v_2  v_1}{v_1}\) x 100
= \(\frac{\frac{3}{3 \lambda_1}\frac{c}{\lambda_1}}{\frac{c}{\lambda_1}}\) x 100
= \(\frac{\frac{2c}{3 \lambda_1} \times 100}{\frac{c}{\lambda_1}}\)
=  66%
This post was modified 3 years ago by admin
Add a comment
Add a comment
Forum Jump:
Related Topics

According to Bohr’s theory, the energy required for the transition of Hatom from n = 6 to n = 8 state is
3 years ago

If the subsidiary quantum number of a sub energy level is 4, the maximum and minimum values of the spin multiplicities are :
3 years ago

Ionization potential of hydrogen atom is 13.6eV. Hydrogen atom in ground state are excited by monochromatic light of energy 12.1 eV.
3 years ago

What should be the kinetic energy and total energy of the electron present in hydrogen atom, if its potential energy is –5.02 eV?
3 years ago

An electron has been excited from the first to the fourth energy state in an atom. Which of the following transitions are possible when the electron comes back to the ground state?
3 years ago
Forum Information
 321 Forums
 27.3 K Topics
 53.8 K Posts
 0 Online
 12.4 K Members
Our newest member: Stripchat
Forum Icons:
Forum contains no unread posts
Forum contains unread posts
Topic Icons:
Not Replied
Replied
Active
Hot
Sticky
Unapproved
Solved
Private
Closed