EASY
12th ICSE
IMPORTANT
Earn 100

Will the critical angle for glass-water interface smaller or larger than that for glass-air interface?

Important Questions on Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre

EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 2 - Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre>QUESTIONS>Q 13

What is the refractive index of diamond? What is the critical angle for the diamond-air interface?

EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 2 - Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre>QUESTIONS>Q 14
Which has a larger critical angle, water or diamond?
MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 2 - Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre>QUESTIONS>Q 15
Name the phenomenon responsible for mirage.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 2 - Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre>QUESTIONS>Q 16
Name the principle on the basis of which optical fibres work.
MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 2 - Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre>QUESTIONS>Q 1

Discuss refraction through a glass slab and show that emergent ray is parallel to the incident ray but displaced.

HARD
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 2 - Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre>QUESTIONS>Q 2
For what angle of incidence, the lateral displacement is maximum? Can it be zero?
MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 2 - Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre>QUESTIONS>Q 3
A beam of light is converging towards a point. A parallel-sided glass slab is introduced in the path of this beam. How will the point of convergence be shifted? Draw the ray-diagram.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 2 - Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre>QUESTIONS>Q 4
Define critical angle for an interface of two media.