Advertisements
Advertisements
प्रश्न
A ray of monochromatic light is incident from the air on a glass slab:
(i) Draw a labelled ray diagram showing the change in the path of the ray till it emerges from the glass slab.
(ii) Name the two rays that are parallel to each other.
(iii) Mark the lateral displacement in your diagram.
Advertisements
उत्तर
(i) Ray diagram of monochromatic light

(ii) Incident ray and emergent rays are parallel to each other.
(iii) Lateral displacement is marked by d in the diagram.
APPEARS IN
संबंधित प्रश्न
How does the angle of minimum deviation produces by a prism change with increase in :
the wavelength of incident light
How does the speed of light change when it passes from glass to water?
A total reflecting equilateral prism can be used to deviate a ray of light through:
Rewrite the following statement by selecting the correct option:
If a ray of light strikes a glass slab at an angle of 600 with the surface of the slab, the angle of incidence must be __________________.
Define the term refractive index of a medium in terms of velocity of light.
After a robbery, if a window has been broken, there will be tiny particles of glass. Some of these will be found at the scene of the crime and some may be caught in the thief’s clothing. If the police can prove that these particles are identical, they have a strong case.
A method of doing this is to suspend the particles of glass in a special liquid. Light of a single colour is thrown through the liquid and the particles viewed through a microscope. The temperature of the liquid is then slowly altered. This alters the speed of light through the liquid (i.e., it alters the refractive index). At one particular temperature, the particles of glass disappear. It this happens at the same temperature for both sets of glass particles, they probably came from the same broken pane of glass.
Complete and copy the diagram to show how light bends when it travels from the liquid to the glass and back to the liquid, If the light slows down in the glass.
How will you verify the laws of refraction or how the refractive index of glass is determined in the laboratory?
The velocity of light in diamond is 121000 kms-1. What is its refractive index?
The refractive index of glass with respect to air is 1.5. What is the value of the refractive index of air with respect to glass?
