WorksheetsP12: L4 - Reflection & Refraction 2
Total questions: 12
Worksheet time: 9mins
What happens to light during total internal reflection?
The angle of incidence is greater than the critical angle.
The angle of reflection is the same as the critical angle.
The angle of refraction is less than the critical angle.
The angle of incidence is zero.
Fiber optic cables work because of the principle of _____.
total internal refraction
incomplete internal refraction
total internal reflection
partial internal reflection
When angle of incident (i) equals to critical angle (c) if light is traveled from a denser medium to a less dense medium,
total internal reflection occurs.
angle of refraction is equal to 90 degree.
light is refracted out
light travel in straight line
Which diagram correctly describes the critical angle c for air-water surface?
A
B
C
D
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
