Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • How to solve this problem- - Optics - NEET

A thin prism of angle 15^{\circ} made of glass of refractive index \mu _{1} = 1.5 is combined with another prism of glass of refractive index \mu _{2} = 1.75. The combination of the prism produces dispersion without deviation. The angle of the second prism should be

  • Option 1)

    7^{\circ}

  • Option 2)

    10^{\circ}

  • Option 3)

    12^{\circ}

  • Option 4)

    5^{\circ}

 

Answers (1)

best_answer

As we learnt in

Deviation from thin prism -

delta = left ( mu -1 ight )A

- wherein

Applicable when A is very small

 ( i.e. thin prism )

 

 Net deviation = 0 

 \therefore \delta_{1}+\delta_{2}=0

\Rightarrow (\mu_{1}-1)A_{1}=(\mu_{2}-1)A_{2}

\Rightarrow |A_{2}|=\frac{\mu_{1}-1}{\mu_{2}-1}A_{1}=\frac{1.5-1}{1.75-1}\times 15^{o}=\frac{0.5}{0.75}\times 15^{o}

A_{2}=10^{o}

 


Option 1)

7^{\circ}

Incorrect

Option 2)

10^{\circ}

Correct

Option 3)

12^{\circ}

Incorrect

Option 4)

5^{\circ}

Incorrect

Posted by

prateek

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 NEET UG merit list 2025 out; 87,909 to take part in MBBS, BDS, AYUSH counselling
anam-khan

‘Will affect lakhs of candidates’: Supreme Court, HC refuse NEET UG 2025 re-exam, result revision pleas
anam-khan

No NEET UG 2025 re-test for MP candidates as high court stays single judge order

Latest Question