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7Total internal reflection occurs when light passes from rarer to denser medium.
The critical angle is the angle of incidence at which the refracted ray makes 90° with the normal.
Total internal reflection occurs when i < critical angle.
Light striking water-air interface at i > critical angle is reflected back entirely into water.
The angle of refraction cannot exceed 90°.
TIR cannot occur in air → water interface.
Percentage: 0%
Total internal reflection occurs when light travels from:
The angle of refraction at the critical angle is:
If the angle of incidence is less than the critical angle:
If light travels from glass to air, TIR occurs when:
The reflected ray in TIR remains in:
The critical angle depends on:
Total internal reflection is not observed when light travels:
Total internal reflection occurs when light travels from a ______ medium to a ______ medium.
When the angle of incidence increases, the corresponding angle of refraction also ______ until it reaches 90°.
The ______ angle of refraction for which refraction occurs is 90°.
The angle of incidence in the denser medium at which the refracted ray makes 90° with the normal is called the ______ angle.
Light striking the water-air interface at an angle greater than the critical angle is ______ internally reflected.
No refraction occurs when the angle of incidence is ______ than the critical angle.
The ray reflected back into the denser medium without entering the rarer medium is called the ______ ray under TIR.