365063
If a small angled prism, made of glass is immersed in a liquid of refractive index 1 and a ray of light is made incident on it, then
1 Its deviation will be zero
2 It will suffer total reflection
3 The emergent ray is bent towards the edge of the prism
4 The emergent ray is bent towards the base of prism
Explanation:
Conceptual Question
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365064
A given ray of light suffers minimum deviation in an equilateral prism \(P\). Additional prism \(Q\) and \(R\) of identical shape and of the same material as \(P\) are now added as shown in the figure. The ray will now suffer
1 Greater deviation
2 No deviation
3 Same deviation as before
4 Total internal reflection
Explanation:
There will be no refraction from \(P\) to \(Q\) and then from \(Q\) to \(R\) (all beign identical). Hence the ray will now have the same deviation as net deviation caused by \(Q\) and \(R\) will be zero cancelling each others.
MHTCET - 2021
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365065
A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation, which of the following is true?
1 \({\rm{QR }}\) is horizontal
2 \({\rm{PQ }}\) is horizontal
3 Either \({\rm{PQ }}\) or \({\rm{RS}}\) is horizontal
4 \({\rm{RS}}\) is horizontal
Explanation:
In minimum deviation position refracted ray inside the prism is parallel to the base of the prism.
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365066
If the angle of minimum deviation is equal to angle of a prism for an equilateral prism, then the speed of light inside the prism is ____ .
For minimum angle of deviation, refractive index of a prism is given by \(\mu=\dfrac{\sin \left(\dfrac{A+d_{m}}{2}\right)}{\sin \left(\dfrac{A}{2}\right)}\) \({A=d_{m}=60^{\circ}}\) \({\mu=\dfrac{\sin 60^{\circ}}{\sin 30^{\circ}}=\sqrt{3}}\) \({\dfrac{c}{v}=\mu=\sqrt{3}}\) \({v=\dfrac{c}{\sqrt{3}}=\sqrt{3} \times 10^{8} {~m} / {s}}\).
365063
If a small angled prism, made of glass is immersed in a liquid of refractive index 1 and a ray of light is made incident on it, then
1 Its deviation will be zero
2 It will suffer total reflection
3 The emergent ray is bent towards the edge of the prism
4 The emergent ray is bent towards the base of prism
Explanation:
Conceptual Question
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365064
A given ray of light suffers minimum deviation in an equilateral prism \(P\). Additional prism \(Q\) and \(R\) of identical shape and of the same material as \(P\) are now added as shown in the figure. The ray will now suffer
1 Greater deviation
2 No deviation
3 Same deviation as before
4 Total internal reflection
Explanation:
There will be no refraction from \(P\) to \(Q\) and then from \(Q\) to \(R\) (all beign identical). Hence the ray will now have the same deviation as net deviation caused by \(Q\) and \(R\) will be zero cancelling each others.
MHTCET - 2021
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365065
A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation, which of the following is true?
1 \({\rm{QR }}\) is horizontal
2 \({\rm{PQ }}\) is horizontal
3 Either \({\rm{PQ }}\) or \({\rm{RS}}\) is horizontal
4 \({\rm{RS}}\) is horizontal
Explanation:
In minimum deviation position refracted ray inside the prism is parallel to the base of the prism.
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365066
If the angle of minimum deviation is equal to angle of a prism for an equilateral prism, then the speed of light inside the prism is ____ .
For minimum angle of deviation, refractive index of a prism is given by \(\mu=\dfrac{\sin \left(\dfrac{A+d_{m}}{2}\right)}{\sin \left(\dfrac{A}{2}\right)}\) \({A=d_{m}=60^{\circ}}\) \({\mu=\dfrac{\sin 60^{\circ}}{\sin 30^{\circ}}=\sqrt{3}}\) \({\dfrac{c}{v}=\mu=\sqrt{3}}\) \({v=\dfrac{c}{\sqrt{3}}=\sqrt{3} \times 10^{8} {~m} / {s}}\).
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PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365063
If a small angled prism, made of glass is immersed in a liquid of refractive index 1 and a ray of light is made incident on it, then
1 Its deviation will be zero
2 It will suffer total reflection
3 The emergent ray is bent towards the edge of the prism
4 The emergent ray is bent towards the base of prism
Explanation:
Conceptual Question
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365064
A given ray of light suffers minimum deviation in an equilateral prism \(P\). Additional prism \(Q\) and \(R\) of identical shape and of the same material as \(P\) are now added as shown in the figure. The ray will now suffer
1 Greater deviation
2 No deviation
3 Same deviation as before
4 Total internal reflection
Explanation:
There will be no refraction from \(P\) to \(Q\) and then from \(Q\) to \(R\) (all beign identical). Hence the ray will now have the same deviation as net deviation caused by \(Q\) and \(R\) will be zero cancelling each others.
MHTCET - 2021
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365065
A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation, which of the following is true?
1 \({\rm{QR }}\) is horizontal
2 \({\rm{PQ }}\) is horizontal
3 Either \({\rm{PQ }}\) or \({\rm{RS}}\) is horizontal
4 \({\rm{RS}}\) is horizontal
Explanation:
In minimum deviation position refracted ray inside the prism is parallel to the base of the prism.
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365066
If the angle of minimum deviation is equal to angle of a prism for an equilateral prism, then the speed of light inside the prism is ____ .
For minimum angle of deviation, refractive index of a prism is given by \(\mu=\dfrac{\sin \left(\dfrac{A+d_{m}}{2}\right)}{\sin \left(\dfrac{A}{2}\right)}\) \({A=d_{m}=60^{\circ}}\) \({\mu=\dfrac{\sin 60^{\circ}}{\sin 30^{\circ}}=\sqrt{3}}\) \({\dfrac{c}{v}=\mu=\sqrt{3}}\) \({v=\dfrac{c}{\sqrt{3}}=\sqrt{3} \times 10^{8} {~m} / {s}}\).
365063
If a small angled prism, made of glass is immersed in a liquid of refractive index 1 and a ray of light is made incident on it, then
1 Its deviation will be zero
2 It will suffer total reflection
3 The emergent ray is bent towards the edge of the prism
4 The emergent ray is bent towards the base of prism
Explanation:
Conceptual Question
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365064
A given ray of light suffers minimum deviation in an equilateral prism \(P\). Additional prism \(Q\) and \(R\) of identical shape and of the same material as \(P\) are now added as shown in the figure. The ray will now suffer
1 Greater deviation
2 No deviation
3 Same deviation as before
4 Total internal reflection
Explanation:
There will be no refraction from \(P\) to \(Q\) and then from \(Q\) to \(R\) (all beign identical). Hence the ray will now have the same deviation as net deviation caused by \(Q\) and \(R\) will be zero cancelling each others.
MHTCET - 2021
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365065
A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation, which of the following is true?
1 \({\rm{QR }}\) is horizontal
2 \({\rm{PQ }}\) is horizontal
3 Either \({\rm{PQ }}\) or \({\rm{RS}}\) is horizontal
4 \({\rm{RS}}\) is horizontal
Explanation:
In minimum deviation position refracted ray inside the prism is parallel to the base of the prism.
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS
365066
If the angle of minimum deviation is equal to angle of a prism for an equilateral prism, then the speed of light inside the prism is ____ .
For minimum angle of deviation, refractive index of a prism is given by \(\mu=\dfrac{\sin \left(\dfrac{A+d_{m}}{2}\right)}{\sin \left(\dfrac{A}{2}\right)}\) \({A=d_{m}=60^{\circ}}\) \({\mu=\dfrac{\sin 60^{\circ}}{\sin 30^{\circ}}=\sqrt{3}}\) \({\dfrac{c}{v}=\mu=\sqrt{3}}\) \({v=\dfrac{c}{\sqrt{3}}=\sqrt{3} \times 10^{8} {~m} / {s}}\).
