282694
A ray of light is incident on a medium of refractive index ' \(\mu\) ' at an angle of incidence ' \(i\) '. After refraction the angle of deviation is ' \(\delta\) '. Then \(\frac{1}{\mu}\) is
282695
Which colour of the light has the longest wavelength?
1 Blue
2 Green
3 Violet
4 Red
Explanation:
D: Red colour light has longest wavelength and the range of wavelength for red light is \(620-700 \mathrm{~nm}\).
NEET- 2019
Ray Optics
282696
Two beams of red and violet color are made to pass separately through a prism with angle of prism \(60^{\circ}\). In the position of minimum deviation, the angle of refraction will be:
1 \(60^{\circ}\) for both colours
2 \(30^{\circ}\) for both colours
3 greater for violet colour
4 greater for red colour
Explanation:
B: During minimum deviation,
\(r_1=r_2=\frac{A}{2}\)
Angle of refraction in both the case will be,
\(\begin{gathered}
r_1=r_2=\frac{60^{\circ}}{2} \\
r_1=r_2=30^{\circ}
\end{gathered}\)
So, angle of refraction is independent of the colour and \(30^{\circ}\) for both the colour.
UPSEE 2019
Ray Optics
282697
A quartz prism can produce a minimum deviation \(\delta\) in a light beam. Then the minimum deviation produced by three prisms combined together is
1 \(2 \delta\)
2 0
3 \(\delta\)
4 \(3 \delta\)
Explanation:
C: In this case, deviation from two prisms cancel out each other and the net deviation is from third prism only . i.e., \(\delta-\delta+\delta=\delta\).
NEET Test Series from KOTA - 10 Papers In MS WORD
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Ray Optics
282694
A ray of light is incident on a medium of refractive index ' \(\mu\) ' at an angle of incidence ' \(i\) '. After refraction the angle of deviation is ' \(\delta\) '. Then \(\frac{1}{\mu}\) is
282695
Which colour of the light has the longest wavelength?
1 Blue
2 Green
3 Violet
4 Red
Explanation:
D: Red colour light has longest wavelength and the range of wavelength for red light is \(620-700 \mathrm{~nm}\).
NEET- 2019
Ray Optics
282696
Two beams of red and violet color are made to pass separately through a prism with angle of prism \(60^{\circ}\). In the position of minimum deviation, the angle of refraction will be:
1 \(60^{\circ}\) for both colours
2 \(30^{\circ}\) for both colours
3 greater for violet colour
4 greater for red colour
Explanation:
B: During minimum deviation,
\(r_1=r_2=\frac{A}{2}\)
Angle of refraction in both the case will be,
\(\begin{gathered}
r_1=r_2=\frac{60^{\circ}}{2} \\
r_1=r_2=30^{\circ}
\end{gathered}\)
So, angle of refraction is independent of the colour and \(30^{\circ}\) for both the colour.
UPSEE 2019
Ray Optics
282697
A quartz prism can produce a minimum deviation \(\delta\) in a light beam. Then the minimum deviation produced by three prisms combined together is
1 \(2 \delta\)
2 0
3 \(\delta\)
4 \(3 \delta\)
Explanation:
C: In this case, deviation from two prisms cancel out each other and the net deviation is from third prism only . i.e., \(\delta-\delta+\delta=\delta\).
282694
A ray of light is incident on a medium of refractive index ' \(\mu\) ' at an angle of incidence ' \(i\) '. After refraction the angle of deviation is ' \(\delta\) '. Then \(\frac{1}{\mu}\) is
282695
Which colour of the light has the longest wavelength?
1 Blue
2 Green
3 Violet
4 Red
Explanation:
D: Red colour light has longest wavelength and the range of wavelength for red light is \(620-700 \mathrm{~nm}\).
NEET- 2019
Ray Optics
282696
Two beams of red and violet color are made to pass separately through a prism with angle of prism \(60^{\circ}\). In the position of minimum deviation, the angle of refraction will be:
1 \(60^{\circ}\) for both colours
2 \(30^{\circ}\) for both colours
3 greater for violet colour
4 greater for red colour
Explanation:
B: During minimum deviation,
\(r_1=r_2=\frac{A}{2}\)
Angle of refraction in both the case will be,
\(\begin{gathered}
r_1=r_2=\frac{60^{\circ}}{2} \\
r_1=r_2=30^{\circ}
\end{gathered}\)
So, angle of refraction is independent of the colour and \(30^{\circ}\) for both the colour.
UPSEE 2019
Ray Optics
282697
A quartz prism can produce a minimum deviation \(\delta\) in a light beam. Then the minimum deviation produced by three prisms combined together is
1 \(2 \delta\)
2 0
3 \(\delta\)
4 \(3 \delta\)
Explanation:
C: In this case, deviation from two prisms cancel out each other and the net deviation is from third prism only . i.e., \(\delta-\delta+\delta=\delta\).
282694
A ray of light is incident on a medium of refractive index ' \(\mu\) ' at an angle of incidence ' \(i\) '. After refraction the angle of deviation is ' \(\delta\) '. Then \(\frac{1}{\mu}\) is
282695
Which colour of the light has the longest wavelength?
1 Blue
2 Green
3 Violet
4 Red
Explanation:
D: Red colour light has longest wavelength and the range of wavelength for red light is \(620-700 \mathrm{~nm}\).
NEET- 2019
Ray Optics
282696
Two beams of red and violet color are made to pass separately through a prism with angle of prism \(60^{\circ}\). In the position of minimum deviation, the angle of refraction will be:
1 \(60^{\circ}\) for both colours
2 \(30^{\circ}\) for both colours
3 greater for violet colour
4 greater for red colour
Explanation:
B: During minimum deviation,
\(r_1=r_2=\frac{A}{2}\)
Angle of refraction in both the case will be,
\(\begin{gathered}
r_1=r_2=\frac{60^{\circ}}{2} \\
r_1=r_2=30^{\circ}
\end{gathered}\)
So, angle of refraction is independent of the colour and \(30^{\circ}\) for both the colour.
UPSEE 2019
Ray Optics
282697
A quartz prism can produce a minimum deviation \(\delta\) in a light beam. Then the minimum deviation produced by three prisms combined together is
1 \(2 \delta\)
2 0
3 \(\delta\)
4 \(3 \delta\)
Explanation:
C: In this case, deviation from two prisms cancel out each other and the net deviation is from third prism only . i.e., \(\delta-\delta+\delta=\delta\).
