282790 A person has been using spectacles of power1.0 Dioptre for distant vision and a separate reading glass of power 2.0 Dioptres. What is the least distance of distinct vision for this person:

282791 For light diverging from a finite point source

282792 To produce dispersion without deviation, a thin prism of angle \(15^{\circ}\) made of glass of refractive index 1.45 is combined with another prism made of glass of refractive index 1.75. The two prisms are arranged such that the refracting angles are in opposite direction. The angle of second prism is

282793 Fresnel distance for an aperture of size a is illuminated by a parallel beam of light of wavelength \(\lambda\), deciding the validity of ray optics is

282790 A person has been using spectacles of power1.0 Dioptre for distant vision and a separate reading glass of power 2.0 Dioptres. What is the least distance of distinct vision for this person:

282791 For light diverging from a finite point source

282792 To produce dispersion without deviation, a thin prism of angle \(15^{\circ}\) made of glass of refractive index 1.45 is combined with another prism made of glass of refractive index 1.75. The two prisms are arranged such that the refracting angles are in opposite direction. The angle of second prism is

282793 Fresnel distance for an aperture of size a is illuminated by a parallel beam of light of wavelength \(\lambda\), deciding the validity of ray optics is

282790 A person has been using spectacles of power1.0 Dioptre for distant vision and a separate reading glass of power 2.0 Dioptres. What is the least distance of distinct vision for this person:

282791 For light diverging from a finite point source

282792 To produce dispersion without deviation, a thin prism of angle \(15^{\circ}\) made of glass of refractive index 1.45 is combined with another prism made of glass of refractive index 1.75. The two prisms are arranged such that the refracting angles are in opposite direction. The angle of second prism is

282793 Fresnel distance for an aperture of size a is illuminated by a parallel beam of light of wavelength \(\lambda\), deciding the validity of ray optics is

282790 A person has been using spectacles of power1.0 Dioptre for distant vision and a separate reading glass of power 2.0 Dioptres. What is the least distance of distinct vision for this person:

282791 For light diverging from a finite point source

282792 To produce dispersion without deviation, a thin prism of angle \(15^{\circ}\) made of glass of refractive index 1.45 is combined with another prism made of glass of refractive index 1.75. The two prisms are arranged such that the refracting angles are in opposite direction. The angle of second prism is

282793 Fresnel distance for an aperture of size a is illuminated by a parallel beam of light of wavelength \(\lambda\), deciding the validity of ray optics is