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प्रश्न
How is the critical angle of a material related to its refractive index?
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उत्तर
Relation of critical angle and refractive index:
μ = `1/sin "C"`
Where μ = refractive index of the material and C = critical angle.
संबंधित प्रश्न
Name the factors affecting the critical angle for the pair of media.
Name two factors which affect the critical angle for a given pair of media. State how do the factors affect it.
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Sine of angle of incidence versus sine of angle of refraction,
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Name the factors affecting the critical angle for the pair of media.
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?
Which of the following is not involved in formation of a rainbow?
A rectangular block of glass ABCD has a refractive index 1.6. A pin is placed midway on the face AB (Figure). When observed from the face AD, the pin shall ______.
- appear to be near A.
- appear to be near D.
- appear to be at the centre of AD.
- not be seen at all.
State two differences between normal reflection and total internal reflection.
