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If ne and n0 be the refractive indices o...

If `n_e` and `n_0` be the refractive indices of the crystal for E-ray and O-ray respectively, then for the negative crystal which of the following relation is correct ?

A

`n_e=n_0`

B

`n_egtn_0`

C

`n_eltn_0`

D

`n_e gt/ltn_0`.

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