Flash Card
A ray of light makes an angle of 50° with the surface S1 of the glass slab. Its angle of incidence will be............... .
For a given pair of media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is.............. .
Dispersion of light and mirage are two examples of the phenomenon where ............ takes place.
If the first medium is vacuum then the refractive index of medium 2 is called .............. .
For the refraction of light through a glass slab angle of incidence is .............. angle of emergence.
The process of separation of light into its component colour while it is passing through a medium is called
Light changes its direction when going from one transparent medium to another transparent medium. This is called ............ .
Choose the correct statement regarding the incident ray, refracted ray and normal drawn at the point of incidence.
Coin placed at the bottom of vessel when viewed from sides becomes visible only after filling water upto certain height. This is due to phenomenon of ........ .
When a ray of light enters a rarer medium from a denser medium, it gets partially reflected i.e. part of the light gets reflected and comes back into the denser medium obeying the laws of reflection. This is called .................. reflection.
............. is formed as the combined effect of the refraction, dispersion, and internal reflection
When a ray of light enters a rarer medium from a denser medium, for a particular value of i for which, the value of r becomes equal to 90°, is called the ..............angle.