Advertisements
Advertisements
प्रश्न
Write the relation between the refractive index and critical angle for a given pair of optical media?
Advertisements
उत्तर
`""^a μ_b= 1/(sin C)` where, a and b are the rarer and denser media respectively. C is the critical angle for the given pair of optical media.
APPEARS IN
संबंधित प्रश्न
What is total internal reflection?
Make the correct choices for each of the following :
Total Internal reflection takes place when
(where ∠i = angle of incidence, ∠r = angle of refraction, ∠C = critical angle)
How are critical angles related to the refractive index of the medium?
A ray of light passes through a right-angled prism as shown in the figure. State the angles of incidence at the faces AC and BC.

Answer the following question.
What are the advantages of optical fibre communication over electronic communication?
Solve Numerical example.
A monochromatic ray of light is incident at 37° on an equilateral prism of refractive index 3/2. Determine angle of emergence and angle of deviation. If angle of prism is adjustable, what should its value be for emergent rays to be just possible for the same angle of incidence?
Which of the following statements about total internal reflection is true?
- Assertion (A): Propagation of light through an optical fibre is due to total internal reflection taking place at the core-cladding interface.
- Reason (R): Refractive index of the material of the cladding of the optical fibre is greater than that of the core.
An endoscope uses optic fiber to transmit high resolution images of internal organs without loss of information. The principle of light that is used by the optic fiber is based on ______.
State two differences between normal reflection and total internal reflection.
