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Nandini
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Asked: 2021-12-04T09:32:49+00:00 In:

Select the correct statements from the statements given below regarding refraction of light when light is incident from a medium. A having refractive index 1.85 on a glass slab having refractive index 1.50.

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Poll Results

21.72%[A] Both (i) and (ii) ( 53 voters )
19.67%[B] Both (ii) and (iii) ( 48 voters )
17.21%[C] Both (ii) and (iv) ( 42 voters )
41.39%[D] Both (iii) and (iv) ( 101 voters )
Based On 244 Votes

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(i) Light will bend towards the normal in the glass slab.
(ii) Emergent ray will be parallel to the refracted ray.
(iii) Speed of light will be more in glass slab as compared to medium A.
(iv) Angle of refraction will be more than angle of incidence.

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    1. Best Answer

      [D] Both (iii) and (iv)
      You must know that, light bends away from the normal, when light travels from a denser to a rarer medium. Therefore, angle of refraction (∠r) will be greater than the angle of incidence (∠i).
      Remember here, light is incident from the “A- MEDIUM” having higher refractive index than glass, speed of light will be less in “A- MEDIUM” as compared to glass. Hence, you should go with the option [D].

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