Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Yellow light emitted from a sodium lamp has a wavelength ( lambda) of 580 nm. Calculate the frequency (ν) and wavenumber ( nu ) of the yellow light.

2.5 Yellow light emitted from a sodium lamp has a wavelength (\lambda) of 580 nm. Calculate the frequency (ν) and wavenumber (\nu) of the yellow light.

Answers (1)

best_answer

Given the wavelength of the yellow light emitted from a sodium, lamp is \lambda = 580nm = 580\times10^{-9}m.

And the frequency will be:

\nu =\frac{c}{\lambda} = \frac{3.0\times10^8m/s}{580\times10^{-9}m} = 5.17\times10^{14}s^{-1}

Therefore the wavenumber,

\vartheta =\frac{1}{\lambda} = \frac{1}{580\times10^{-9}m} = 1.72\times10^{6}m^{-1}

Posted by

Divya Prakash Singh

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

PM Modi's Pariksha Pe Charcha 2025 to be held next month, registrations open till January 14
anam-khan

CBSE Board Exams 2025: Online portal for availing exemptions by CWSN students opens
anam-khan

Board Exams: States agree to equivalence; no question paper ‘jumbling’ from next year, says PARAKH CEO

Latest Question