Refraction through a Prism
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365093 A prism of certain angle deviates the red and blue rays by \(8^\circ \) and \(12^\circ \) respectively. Another prism of the same angle deviates the red and blue rays by \(10^\circ \) and \(14^\circ \) respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratio

1 \({\rm{5 : 6}}\)
2 \({\rm{9 : 11}}\)
3 \({\rm{6 : 5}}\)
4 \({\rm{11 : 9}}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365094 A thin prism \(P_{1}\) of angle \(4^{\circ}\), are made from a glass of refractive index 1.54, is combined with another thin prism \(P_{2}\) made from a glass of refractive index 1.72 , to produce dispersion without deviation. The angle of \(P_{2}\) is:

1 \(5.33^{\circ}\)
2 \(4^{\circ}\)
3 \(3^{\circ}\)
4 \(2.6^{\circ}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365095 A parallel glass slab of refractive index \({\sqrt{3}}\) is placed in contact with an equilateral prism of refractive index \({\sqrt{2}}\). A ray is incident on left surface of slab as shown. The slab and prism combination is surrounded by air. Find the magnitude of minimum possible deviation of this ray by slab-prism combination.
supporting img

1 \(30^\circ \)
2 \(58^\circ \)
3 \(45^\circ \)
4 \(25^\circ \)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365096 Assertion :
When white light falls on the compact disc (CD), multicolours are seen after reflection.
Reason :
CD disc behaves like a prism.

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.
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365093 A prism of certain angle deviates the red and blue rays by \(8^\circ \) and \(12^\circ \) respectively. Another prism of the same angle deviates the red and blue rays by \(10^\circ \) and \(14^\circ \) respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratio

1 \({\rm{5 : 6}}\)
2 \({\rm{9 : 11}}\)
3 \({\rm{6 : 5}}\)
4 \({\rm{11 : 9}}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365094 A thin prism \(P_{1}\) of angle \(4^{\circ}\), are made from a glass of refractive index 1.54, is combined with another thin prism \(P_{2}\) made from a glass of refractive index 1.72 , to produce dispersion without deviation. The angle of \(P_{2}\) is:

1 \(5.33^{\circ}\)
2 \(4^{\circ}\)
3 \(3^{\circ}\)
4 \(2.6^{\circ}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365095 A parallel glass slab of refractive index \({\sqrt{3}}\) is placed in contact with an equilateral prism of refractive index \({\sqrt{2}}\). A ray is incident on left surface of slab as shown. The slab and prism combination is surrounded by air. Find the magnitude of minimum possible deviation of this ray by slab-prism combination.
supporting img

1 \(30^\circ \)
2 \(58^\circ \)
3 \(45^\circ \)
4 \(25^\circ \)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365096 Assertion :
When white light falls on the compact disc (CD), multicolours are seen after reflection.
Reason :
CD disc behaves like a prism.

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.
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365093 A prism of certain angle deviates the red and blue rays by \(8^\circ \) and \(12^\circ \) respectively. Another prism of the same angle deviates the red and blue rays by \(10^\circ \) and \(14^\circ \) respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratio

1 \({\rm{5 : 6}}\)
2 \({\rm{9 : 11}}\)
3 \({\rm{6 : 5}}\)
4 \({\rm{11 : 9}}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365094 A thin prism \(P_{1}\) of angle \(4^{\circ}\), are made from a glass of refractive index 1.54, is combined with another thin prism \(P_{2}\) made from a glass of refractive index 1.72 , to produce dispersion without deviation. The angle of \(P_{2}\) is:

1 \(5.33^{\circ}\)
2 \(4^{\circ}\)
3 \(3^{\circ}\)
4 \(2.6^{\circ}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365095 A parallel glass slab of refractive index \({\sqrt{3}}\) is placed in contact with an equilateral prism of refractive index \({\sqrt{2}}\). A ray is incident on left surface of slab as shown. The slab and prism combination is surrounded by air. Find the magnitude of minimum possible deviation of this ray by slab-prism combination.
supporting img

1 \(30^\circ \)
2 \(58^\circ \)
3 \(45^\circ \)
4 \(25^\circ \)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365096 Assertion :
When white light falls on the compact disc (CD), multicolours are seen after reflection.
Reason :
CD disc behaves like a prism.

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.
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365093 A prism of certain angle deviates the red and blue rays by \(8^\circ \) and \(12^\circ \) respectively. Another prism of the same angle deviates the red and blue rays by \(10^\circ \) and \(14^\circ \) respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratio

1 \({\rm{5 : 6}}\)
2 \({\rm{9 : 11}}\)
3 \({\rm{6 : 5}}\)
4 \({\rm{11 : 9}}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365094 A thin prism \(P_{1}\) of angle \(4^{\circ}\), are made from a glass of refractive index 1.54, is combined with another thin prism \(P_{2}\) made from a glass of refractive index 1.72 , to produce dispersion without deviation. The angle of \(P_{2}\) is:

1 \(5.33^{\circ}\)
2 \(4^{\circ}\)
3 \(3^{\circ}\)
4 \(2.6^{\circ}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365095 A parallel glass slab of refractive index \({\sqrt{3}}\) is placed in contact with an equilateral prism of refractive index \({\sqrt{2}}\). A ray is incident on left surface of slab as shown. The slab and prism combination is surrounded by air. Find the magnitude of minimum possible deviation of this ray by slab-prism combination.
supporting img

1 \(30^\circ \)
2 \(58^\circ \)
3 \(45^\circ \)
4 \(25^\circ \)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

365096 Assertion :
When white light falls on the compact disc (CD), multicolours are seen after reflection.
Reason :
CD disc behaves like a prism.

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.