Question

a piece of dimond and a piece of glass which shines more? why
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Answer 1

Diamond shine more than glass piece of the same shape.It is due to the refractive index of both the medium that is R.I of diamond is more than that of glass . Hence critical angle of glass is more than that of diamond causing more total internal reflection in diamond/making it shine.

Answer 2

$\Large{\textsf{\pink{\underline{ANSWER}}}}$

★ Diamond shine more than glass piece of the same shape.

★ It is due to the refractive index of both the medium that is R.I of diamond is more than that of glass .

★ Hence critical angle of glass is more than that of diamond causing more total internal reflection in diamond/making it shine.