364928 A beam of light of converging towards a point \(I\) on a screen. A plane glass plate whose thickness in the direction of the beam = t, Refractive index =\(\mu \) , is introduced in the path of the beam. The convergence point is shifted by

364929 A diver at a depth of \(12\;m\) in water \(\left( {\mu = 4/3} \right)\) sees the sky in a cone of semi-vertical angle

364930 ‘Mirage’ is a phenomenon due to

364931 A point source of light \({S}\) is placed at the bottom of a vessel containing a liquid of refractive index \({5 / 3}\). A person is viewing the source from above the surface. There is an opaque disc \({D}\) of radius \(1\,cm\) floating on the surface of the liquid. The centre of the disc lies vertically above the source. The liquid from the vessel is gradually drained out through a tap. The maximum height of the liquid for which the source cannot be seen at all from above is

364928 A beam of light of converging towards a point \(I\) on a screen. A plane glass plate whose thickness in the direction of the beam = t, Refractive index =\(\mu \) , is introduced in the path of the beam. The convergence point is shifted by

364929 A diver at a depth of \(12\;m\) in water \(\left( {\mu = 4/3} \right)\) sees the sky in a cone of semi-vertical angle

364930 ‘Mirage’ is a phenomenon due to

364931 A point source of light \({S}\) is placed at the bottom of a vessel containing a liquid of refractive index \({5 / 3}\). A person is viewing the source from above the surface. There is an opaque disc \({D}\) of radius \(1\,cm\) floating on the surface of the liquid. The centre of the disc lies vertically above the source. The liquid from the vessel is gradually drained out through a tap. The maximum height of the liquid for which the source cannot be seen at all from above is

364928 A beam of light of converging towards a point \(I\) on a screen. A plane glass plate whose thickness in the direction of the beam = t, Refractive index =\(\mu \) , is introduced in the path of the beam. The convergence point is shifted by

364929 A diver at a depth of \(12\;m\) in water \(\left( {\mu = 4/3} \right)\) sees the sky in a cone of semi-vertical angle

364930 ‘Mirage’ is a phenomenon due to

364931 A point source of light \({S}\) is placed at the bottom of a vessel containing a liquid of refractive index \({5 / 3}\). A person is viewing the source from above the surface. There is an opaque disc \({D}\) of radius \(1\,cm\) floating on the surface of the liquid. The centre of the disc lies vertically above the source. The liquid from the vessel is gradually drained out through a tap. The maximum height of the liquid for which the source cannot be seen at all from above is

364928 A beam of light of converging towards a point \(I\) on a screen. A plane glass plate whose thickness in the direction of the beam = t, Refractive index =\(\mu \) , is introduced in the path of the beam. The convergence point is shifted by

364929 A diver at a depth of \(12\;m\) in water \(\left( {\mu = 4/3} \right)\) sees the sky in a cone of semi-vertical angle

364930 ‘Mirage’ is a phenomenon due to

364931 A point source of light \({S}\) is placed at the bottom of a vessel containing a liquid of refractive index \({5 / 3}\). A person is viewing the source from above the surface. There is an opaque disc \({D}\) of radius \(1\,cm\) floating on the surface of the liquid. The centre of the disc lies vertically above the source. The liquid from the vessel is gradually drained out through a tap. The maximum height of the liquid for which the source cannot be seen at all from above is