Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • I need help with A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emission is at 680 nm, the other is at

A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emission is at 680 nm, the other is at

  • Option 1)

    1035 nm

  • Option 2)

    325 nm

  • Option 3)

    743 nm

  • Option 4)

    518 nm

 

Answers (2)

As we learnt in

The energy (E) of a quantum of radiation -

E=hv

Where h is plank’s constant and \nu is frequency

-

 

 

 

 \frac{1}{\lambda } = \frac{1}{\lambda_1 } + \frac{1}{\lambda_2}

\frac{1}{355 } = \frac{1}{680 } + \frac{1}{\lambda_2}

\frac{1}{\lambda_2} = \frac{325}{680 \times 355 }

{\lambda_2} = 743 nm

 


Option 1)

1035 nm

Option 2)

325 nm

Option 3)

743 nm

Option 4)

518 nm

Posted by

Vakul

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2024 Topper: Farmer’s son Gajare Nilkrishna says ‘keep questioning until you understand’
anam-khan

NIT Puducherry Cut-off 2024: Computer Science and Engineering had highest closing rank last year
anam-khan

What after JEE Main results 2024? All you need to know about JEE Adv, CSAB, JoSAA counselling

Latest Question