ICSE Class 10 Answered
- Please explain with help of a ray diagram:-
- A crack in a glass vessel often shines like a mirror.
Asked by Vandana | 21 Jun, 2017, 08:55: PM
Expert Answer
(The diagramatic representation of how the light under goes partial total internal reflection can be understood with a similar diagram for the same in diamond )
-Air gets filled in a cracked glass.
-While travelling through the glass from the air, the light undergoes a partial total internal reflection within the crack.
-The totally reflected rays will be visible only from a particular direction.
-These rays will make it appear to be shining like a mirror.
Answered by Abhijeet Mishra | 22 Jun, 2017, 02:03: PM
Concept Videos
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Refraction of Light at Plane Surfaces
Refraction of Light at Plane Surfaces, Total Internal Reflection
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