367891
When the angle of incidence is \(30^\circ \) on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is
367892
Assertion : The angle of incidence of light is equal to Brewster's angle. then reflected ray is perpendicular to refracted ray. Reason : The refracted ray is polarized if the angle of incidence of light is equal to Brewster's angle.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Along vertical sign, sum of angles \(=180^{\circ}\). \(\Rightarrow \theta_{B}+90+r=180\) \(\Rightarrow \theta_{B}+r=90^{\circ}\) Brewster's angle \(\left(\theta_{B}\right)\) is the angle of incidence at which the reflected and refracted rays are mutually perpendicular, and the refracted ray is entirely polarized. So correct option is (2).
367891
When the angle of incidence is \(30^\circ \) on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is
367892
Assertion : The angle of incidence of light is equal to Brewster's angle. then reflected ray is perpendicular to refracted ray. Reason : The refracted ray is polarized if the angle of incidence of light is equal to Brewster's angle.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Along vertical sign, sum of angles \(=180^{\circ}\). \(\Rightarrow \theta_{B}+90+r=180\) \(\Rightarrow \theta_{B}+r=90^{\circ}\) Brewster's angle \(\left(\theta_{B}\right)\) is the angle of incidence at which the reflected and refracted rays are mutually perpendicular, and the refracted ray is entirely polarized. So correct option is (2).
367891
When the angle of incidence is \(30^\circ \) on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is
367892
Assertion : The angle of incidence of light is equal to Brewster's angle. then reflected ray is perpendicular to refracted ray. Reason : The refracted ray is polarized if the angle of incidence of light is equal to Brewster's angle.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Along vertical sign, sum of angles \(=180^{\circ}\). \(\Rightarrow \theta_{B}+90+r=180\) \(\Rightarrow \theta_{B}+r=90^{\circ}\) Brewster's angle \(\left(\theta_{B}\right)\) is the angle of incidence at which the reflected and refracted rays are mutually perpendicular, and the refracted ray is entirely polarized. So correct option is (2).
367891
When the angle of incidence is \(30^\circ \) on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is
367892
Assertion : The angle of incidence of light is equal to Brewster's angle. then reflected ray is perpendicular to refracted ray. Reason : The refracted ray is polarized if the angle of incidence of light is equal to Brewster's angle.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Along vertical sign, sum of angles \(=180^{\circ}\). \(\Rightarrow \theta_{B}+90+r=180\) \(\Rightarrow \theta_{B}+r=90^{\circ}\) Brewster's angle \(\left(\theta_{B}\right)\) is the angle of incidence at which the reflected and refracted rays are mutually perpendicular, and the refracted ray is entirely polarized. So correct option is (2).