282811
A thin prism \(P_1\) with angle \(6^{\circ}\) and made from glass of refractive index 1.54 is combined with another thin prism \(\mathrm{P}_2\) of refractive index 1.72to produce dispersion without deviation. The angle of prism \(\mathrm{P}_2\) will be
D: Cauchy's dispersion formula is-
\(\mu=\mathrm{A}+\mathrm{B} \lambda^{-2}+\mathrm{C} \lambda^{-4}\)
Where, \(\mu=\) refractive index
A, B and C are constant for a given medium.
AIIMS-2002
Ray Optics
282813
Rising and setting sun appears to be reddish because
1 Diffraction sends red rays to earth at these times
2 Scattering due to dust particles and air molecules are responsible
3 Refraction is responsible
4 Polarization is responsible
Explanation:
B: Rising and setting sun appears to be reddish because scattering due to dust particles and air molecules are responsible.
VITEEE-2007
Ray Optics
282814
Which of the above lenses do not exhibit dispersion?
**[SCRA-2015]#
1 II and IV
2 I
3 III
4 None
Explanation:
C: As we know, dispersion produced by spherical surface depends on it's radius of curvature. Hence, a lens will not exhibit dispersion only if it's two surfaces have equal radii, with one is convex and other is concave.
282811
A thin prism \(P_1\) with angle \(6^{\circ}\) and made from glass of refractive index 1.54 is combined with another thin prism \(\mathrm{P}_2\) of refractive index 1.72to produce dispersion without deviation. The angle of prism \(\mathrm{P}_2\) will be
D: Cauchy's dispersion formula is-
\(\mu=\mathrm{A}+\mathrm{B} \lambda^{-2}+\mathrm{C} \lambda^{-4}\)
Where, \(\mu=\) refractive index
A, B and C are constant for a given medium.
AIIMS-2002
Ray Optics
282813
Rising and setting sun appears to be reddish because
1 Diffraction sends red rays to earth at these times
2 Scattering due to dust particles and air molecules are responsible
3 Refraction is responsible
4 Polarization is responsible
Explanation:
B: Rising and setting sun appears to be reddish because scattering due to dust particles and air molecules are responsible.
VITEEE-2007
Ray Optics
282814
Which of the above lenses do not exhibit dispersion?
**[SCRA-2015]#
1 II and IV
2 I
3 III
4 None
Explanation:
C: As we know, dispersion produced by spherical surface depends on it's radius of curvature. Hence, a lens will not exhibit dispersion only if it's two surfaces have equal radii, with one is convex and other is concave.
282811
A thin prism \(P_1\) with angle \(6^{\circ}\) and made from glass of refractive index 1.54 is combined with another thin prism \(\mathrm{P}_2\) of refractive index 1.72to produce dispersion without deviation. The angle of prism \(\mathrm{P}_2\) will be
D: Cauchy's dispersion formula is-
\(\mu=\mathrm{A}+\mathrm{B} \lambda^{-2}+\mathrm{C} \lambda^{-4}\)
Where, \(\mu=\) refractive index
A, B and C are constant for a given medium.
AIIMS-2002
Ray Optics
282813
Rising and setting sun appears to be reddish because
1 Diffraction sends red rays to earth at these times
2 Scattering due to dust particles and air molecules are responsible
3 Refraction is responsible
4 Polarization is responsible
Explanation:
B: Rising and setting sun appears to be reddish because scattering due to dust particles and air molecules are responsible.
VITEEE-2007
Ray Optics
282814
Which of the above lenses do not exhibit dispersion?
**[SCRA-2015]#
1 II and IV
2 I
3 III
4 None
Explanation:
C: As we know, dispersion produced by spherical surface depends on it's radius of curvature. Hence, a lens will not exhibit dispersion only if it's two surfaces have equal radii, with one is convex and other is concave.
282811
A thin prism \(P_1\) with angle \(6^{\circ}\) and made from glass of refractive index 1.54 is combined with another thin prism \(\mathrm{P}_2\) of refractive index 1.72to produce dispersion without deviation. The angle of prism \(\mathrm{P}_2\) will be
D: Cauchy's dispersion formula is-
\(\mu=\mathrm{A}+\mathrm{B} \lambda^{-2}+\mathrm{C} \lambda^{-4}\)
Where, \(\mu=\) refractive index
A, B and C are constant for a given medium.
AIIMS-2002
Ray Optics
282813
Rising and setting sun appears to be reddish because
1 Diffraction sends red rays to earth at these times
2 Scattering due to dust particles and air molecules are responsible
3 Refraction is responsible
4 Polarization is responsible
Explanation:
B: Rising and setting sun appears to be reddish because scattering due to dust particles and air molecules are responsible.
VITEEE-2007
Ray Optics
282814
Which of the above lenses do not exhibit dispersion?
**[SCRA-2015]#
1 II and IV
2 I
3 III
4 None
Explanation:
C: As we know, dispersion produced by spherical surface depends on it's radius of curvature. Hence, a lens will not exhibit dispersion only if it's two surfaces have equal radii, with one is convex and other is concave.
