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Geometrical Optics question

2023 · 6 Apr · Shift 1 · Q52
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  5. /2023 · 6 Apr · Shift 1 · Q52

Geometrical Optics question

2023 · 6 Apr · Shift 1 · Q52

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
A monochromatic light wave with wavelength λ1\lambda_{1}λ1​ and frequency v1v_{1}v1​ in air enters another medium. If the angle of incidence and angle of refraction at the interface are 45∘45^{\circ}45∘ and 30∘30^{\circ}30∘ respectively, then the wavelength λ2\lambda_{2}λ2​ and frequency v2v_{2}v2​ of the refracted wave are:
  1. A
    λ2=λ1,v2=12v1\lambda_{2}=\lambda_{1}, v_{2}=\frac{1}{\sqrt{2}} v_{1}λ2​=λ1​,v2​=2​1​v1​
  2. B
    λ2=λ1,v2=2v1\lambda_{2}=\lambda_{1}, v_{2}=\sqrt{2} v_{1}λ2​=λ1​,v2​=2​v1​
  3. C
    λ2=2λ1,v2=v1\lambda_{2}=\sqrt{2} \lambda_{1}, v_{2}=v_{1}λ2​=2​λ1​,v2​=v1​
  4. D
    λ2=12λ1,v2=v1\lambda_{2}=\frac{1}{\sqrt{2}} \lambda_{1}, v_{2}=v_{1}λ2​=2​1​λ1​,v2​=v1​
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