Advertisements
Advertisements
Question
Name the factors affecting the critical angle for the pair of media.
Solution
Factors affecting the critical angle:
(i) Angle of incidence.
(ii) Refractive index of the medium.
APPEARS IN
RELATED QUESTIONS
Total internal reflection occurs only when a ray of light passes from a ______ medium to a ______ medium.
Write the necessary conditions for the phenomenon of total internal reflection to
occur ?
i) Observe the given figure and answer the following questions.
a) Identify and write the natural process shown in the figure.
b) List the phenomena which are observe in this process.
c) Redraw the diagram and show above phenomena in it.
The diagram below shows a light source P embedded in a rectangular glass block ABCD of critical angle 42°. Complete the path of the ray PQ till it emerges out of the block. [Write necessary angles].
Write down the relationship between the critical angle and the refractive index of the medium.
A ray of light is incident on a glass surface at an angle of 50° with the corresponding angle of refraction 30°. Find the value of the R.I. of glass.
A spherical marble, of refractive index 1.5 and curvature 1.5 cm, contains a tiny air bubble at its centre. Where will it appear when seen from outside?
Observe the given figure and write appropriate phenomenon of light in the box.
Which of the following statements about total internal reflection is true?
