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Ray Optics — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsRay Optics1 Mark
MCQ
White light is passed through a prism whose angle is $5^{\circ}$. If the refractive indices for rays of red and blue colour are respectively $1.64$ and $1.66,$ the angle of deviation between the two colours will be
  • ✓
    $0.1^{\circ}$
  • B
    $0.2^{\circ}$
  • C
    $0.3^{\circ}$
  • D
    $0.4^{\circ}$
✓

Answer

Correct option: A.
$0.1^{\circ}$
$\theta=\left(\mu_v-\mu_r\right) A=0.02 \times 5^{\circ}=0.1^{\circ}$

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