A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. the maximum possible deviation of the way will be
Sahay Sir > Question Answers > A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. the maximum possible deviation of the way will be
A slab of a material of refractive index 2 shown in the figure, has a curved surface APB of radius of curvature 10cm and a plane surface CD. On the left oa APB is air and on the right of CD is water with refractive indices as given in the figure. An object O is placed at a distance of 15cm from the pole P as shown. The distance of the final image of O from P, as viewed from the left is
11
Sep
A slab of a material of refractive index 2 shown in the figure, has a curved surface APB of radius of curvature 10cm and a plane surface CD. On the left oa APB is air and on the right of CD is water with refractive indices as given in the figure. An object O is [...]
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A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. the maximum possible deviation of the way will be ,
A slab of a material of refractive index 2 shown in the figure ,
When light is incident on a medium at angle i and refracted into a second medium at an angle r ,
When light is incident on a medium at angle i and refracted into a second medium at an angle r, the graph of sin r versus sin i is as shown. From this one can conclude that (i) the velocity of light in second medium is 3–√ times the velocity of light in the first medium (ii) the velocity of light in the first medium is 3–√ times the velocity of ligth in second medium (iii) the critical angle of the two media is given by sini C=13–√3 (iv) the critical angle of the two media is given by sini C=12–√2
11
Sep
When light is incident on a medium at angle i and refracted into a second medium at an angle r, the graph of sin r versus sin i is as shown. From this one can conclude that (i) the velocity of light in second medium is 3–√ times the velocity of light in the first [...]
The apparent depth of water in cylindrical water tank of diameter 2R cm is reducing at the rate of x cm/min when water is being drained out at a constant rate. The amount of water drained in c.c. per minute is (n1= refractive index of air, n2= refractive index of water )
11
Sep
The apparent depth of water in cylindrical water tank of diameter 2R cm is reducing at the rate of x cm/min when water is being drained out at a constant rate. The amount of water drained in c.c. per minute is (n1= refractive index of air, n2= refractive index of water ) A ray of [...]
A ray of light falls on the surface of a spherical glass paper weight making an angle α with the normal and is refracted in the medium at an angle β. The angle of deviation of the emergent ray from the direction of the incident ray is
11
Sep
A ray of light falls on the surface of a spherical glass paper weight making an angle α with the normal and is refracted in the medium at an angle β. The angle of deviation of the emergent ray from the direction of the incident ray is A ray of light travels from an optically [...]
A rod of glass (μ=1.5) and of square cross section is bent into the shape shown in the figure. A parallel beam of light falls on the plane flat surface A as shown in the figure. If d is the width of a side and R is the radius of circular arc then for what maximum value of dR light entering the glass slab through surface A emerges from the glass through B
11
Sep
A rod of glass (μ=1.5) and of square cross section is bent into the shape shown in the figure. A parallel beam of light falls on the plane flat surface A as shown in the figure. If d is the width of a side and R is the radius of circular arc then for what [...]
An optical fibre consists of core of mu1 surrounded by a cladding of mu2< mu1. A beam of light enters from air at an angle alpha with axis of fibre. The highest alpha for which ray can be travelled through fibre is
11
Sep
An optical fibre consists of core of mu1 surrounded by a cladding of mu2< mu1. A beam of light enters from air at an angle alpha with axis of fibre. The highest alpha for which ray can be travelled through fibre is A ray of light travels from an optically denser to rarer medium. The [...]
A point source of light S is placed at the bottom of a vessel containg a liquid of refractive index 5/3. A person is viewing the source from above the surface. There is an opaque disc of radius 1cm floating on the surface. The centre of the disc lies vertically above the source S. The liquid from the vessel is gradually drained out through a tap. What is the maximum height of the liquid for which the source cannot at all be seen from above?
11
Sep
A point source of light S is placed at the bottom of a vessel containg a liquid of refractive index 5/3. A person is viewing the source from above the surface. There is an opaque disc of radius 1cm floating on the surface. The centre of the disc lies vertically above the source S. The [...]
Light enters at an angle of incidence in a transparent rod of refractive index n. For what value of the refractive index of the material of the rod the light once entered into it will not leave it through its lateral face whatsoever be the value of angle of incidence.
11
Sep
Light enters at an angle of incidence in a transparent rod of refractive index n. For what value of the refractive index of the material of the rod the light once entered into it will not leave it through its lateral face whatsoever be the value of angle of incidence. A ray of light travels [...]
A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. the maximum possible deviation of the way will be
11
Sep
A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. the maximum possible deviation of the way will be A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. the maximum possible deviation [...]