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Figure shows a mixture of blue, green an...

Figure shows a mixture of blue, green and red coloured rays incident normally on a right angled prism. The critical angles of the material of the prism for red, green and blue are `46^@`, `44^@` and `43^@` respectively. The arrangement will separate

A

Green colour from red and blue

B

All the three colours

C

Red colour from blue and green

D

Blue colour from red and green

Text Solution

Verified by Experts

The correct Answer is:
C
Angle of incidence i = `45^(@)`
For blue and green
`i_(c ) gt i`
For Red `i_(c ) lt i`.
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