why there is a silvery apperance at the crack of thick glass
Answers
Answered by
5
1. There is always an amount of air present in the crack.
2. When rays of light travelling through glass, strike the glass air interface at an angle, greater than critical angle of glass, they are totally reflected.
3.When these reflected rays reach our eyes , then to eyes they appear to come from the crack, which in turns appears to be silvery.
2. When rays of light travelling through glass, strike the glass air interface at an angle, greater than critical angle of glass, they are totally reflected.
3.When these reflected rays reach our eyes , then to eyes they appear to come from the crack, which in turns appears to be silvery.
Answered by
3
because glass is a amorphous solid which does not give clean cleavage on cut so that the rough surface will scatter the lights which reflects the silver coated behind the glass
Similar questions