and 
represent the velocities, 
and 
the refractive indices of ordinary and extraordinary rays for a doubly refracting crystal. Then
A
if the crystal is calcite
B
if the crystal is quartz
C
if the crystal is calcite
D
if the crystal is quartz
Text Solution
Verified by ExpertsThe correct answer is:
C
In double refraction light rays always splits into two rays ( O- ray & E- ray). O -ray has same velocity in all direction but E -ray has different velocity in different direction.
For calcite μ μ e < μ μ 0 ⇒ ⇒ v e > v 0
For quartz μ μ e > μ μ 0 ⇒ ⇒ v 0 > v e
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