Refraction through a Prism
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365059 The angle of minimum deviation measured with a prism is \(30^{\circ}\) and the angle of prism is \(60^{\circ}\). The refractive index of prism material is-

1 \(\sqrt{2}\)
2 2
3 \(\dfrac{3}{2}\)
4 \(\dfrac{4}{3}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365060 The angle of incidence for a ray of light at a refracting surface of a prism is 45°. The angle of prism is 60°. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are:

1 \(45^\circ ,\frac{1}{{\sqrt 2 }}\)
2 \(30^\circ ,\sqrt 2 \)
3 \(45^\circ ,\sqrt 2 \)
4 \(30^\circ ,\frac{1}{{\sqrt 2 }}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365061 Figure shows graph of deviation \(\delta \) versus angle of incidence for a light ray striking a prism. Angle of prism is :
supporting img

1 60°
2 45°
3 30°
4 75°
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365062 The ratio of angle of minimum deviation of a prism in air and when dipped in water will be \(\left({ }_{a} \mu_{g}=3 / 2\right.\) and \(\left.{ }_{a} \mu_{w}=4 / 3\right)\) if prism angle is very small.

1 \(1 / 8\)
2 \(1 / 2\)
3 \(3 / 4\)
4 4
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365059 The angle of minimum deviation measured with a prism is \(30^{\circ}\) and the angle of prism is \(60^{\circ}\). The refractive index of prism material is-

1 \(\sqrt{2}\)
2 2
3 \(\dfrac{3}{2}\)
4 \(\dfrac{4}{3}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365060 The angle of incidence for a ray of light at a refracting surface of a prism is 45°. The angle of prism is 60°. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are:

1 \(45^\circ ,\frac{1}{{\sqrt 2 }}\)
2 \(30^\circ ,\sqrt 2 \)
3 \(45^\circ ,\sqrt 2 \)
4 \(30^\circ ,\frac{1}{{\sqrt 2 }}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365061 Figure shows graph of deviation \(\delta \) versus angle of incidence for a light ray striking a prism. Angle of prism is :
supporting img

1 60°
2 45°
3 30°
4 75°
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365062 The ratio of angle of minimum deviation of a prism in air and when dipped in water will be \(\left({ }_{a} \mu_{g}=3 / 2\right.\) and \(\left.{ }_{a} \mu_{w}=4 / 3\right)\) if prism angle is very small.

1 \(1 / 8\)
2 \(1 / 2\)
3 \(3 / 4\)
4 4
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365059 The angle of minimum deviation measured with a prism is \(30^{\circ}\) and the angle of prism is \(60^{\circ}\). The refractive index of prism material is-

1 \(\sqrt{2}\)
2 2
3 \(\dfrac{3}{2}\)
4 \(\dfrac{4}{3}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365060 The angle of incidence for a ray of light at a refracting surface of a prism is 45°. The angle of prism is 60°. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are:

1 \(45^\circ ,\frac{1}{{\sqrt 2 }}\)
2 \(30^\circ ,\sqrt 2 \)
3 \(45^\circ ,\sqrt 2 \)
4 \(30^\circ ,\frac{1}{{\sqrt 2 }}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365061 Figure shows graph of deviation \(\delta \) versus angle of incidence for a light ray striking a prism. Angle of prism is :
supporting img

1 60°
2 45°
3 30°
4 75°
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365062 The ratio of angle of minimum deviation of a prism in air and when dipped in water will be \(\left({ }_{a} \mu_{g}=3 / 2\right.\) and \(\left.{ }_{a} \mu_{w}=4 / 3\right)\) if prism angle is very small.

1 \(1 / 8\)
2 \(1 / 2\)
3 \(3 / 4\)
4 4
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PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365059 The angle of minimum deviation measured with a prism is \(30^{\circ}\) and the angle of prism is \(60^{\circ}\). The refractive index of prism material is-

1 \(\sqrt{2}\)
2 2
3 \(\dfrac{3}{2}\)
4 \(\dfrac{4}{3}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365060 The angle of incidence for a ray of light at a refracting surface of a prism is 45°. The angle of prism is 60°. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are:

1 \(45^\circ ,\frac{1}{{\sqrt 2 }}\)
2 \(30^\circ ,\sqrt 2 \)
3 \(45^\circ ,\sqrt 2 \)
4 \(30^\circ ,\frac{1}{{\sqrt 2 }}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365061 Figure shows graph of deviation \(\delta \) versus angle of incidence for a light ray striking a prism. Angle of prism is :
supporting img

1 60°
2 45°
3 30°
4 75°
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365062 The ratio of angle of minimum deviation of a prism in air and when dipped in water will be \(\left({ }_{a} \mu_{g}=3 / 2\right.\) and \(\left.{ }_{a} \mu_{w}=4 / 3\right)\) if prism angle is very small.

1 \(1 / 8\)
2 \(1 / 2\)
3 \(3 / 4\)
4 4