Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Light is incident normally on a diffraction grating through which the first order diffraction is seen at <img alt="32^{\circ}" src="https://entrancecorner.oncodecogs.com/gif.latex?32%5E%7B%5Ccirc%7

Light is incident normally on a diffraction grating through which the first order diffraction is seen at 32^{\circ}.The second order diffraction will be seen at

Option: 1

48^{\circ}


Option: 2

64^{\circ}


Option: 3

80^{\circ}


Option: 4

there is no second order diffraction in this case.


Answers (1)

best_answer

For a grating \mathrm{(e+d) \sin \theta_{n}=n \lambda}

\mathrm{ where (e+d)= grating \: element}
\mathrm{ \sin \theta_{n}=\frac{n \lambda}{(e+d)}}

\mathrm{ for n=1, \sin \theta_{1}=\frac{\lambda}{(e+d)}=\sin 32^{\circ}}
This is more than 0.5. Now \mathrm{ \sin \theta_{2}} will be more than \mathrm{ 2 \times 0.5}, which is not possible.

Posted by

Pankaj Sanodiya

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

Karnataka AYUSH UG 2025: Round 3 stray vacancy registration begins; option entry ends in two days
anam-khan

Maharashtra NEET UG 2025: Just 114 marks enough for private MBBS seat; govt colleges close at 500
anam-khan

UP NEET AYUSH 2025: Stray vacancy round 3 schedule out; registration ends in two days

Latest Question