Question

In an equilateral prism for minimum deviation of ray which of the following is true first option PQ is horizontal second option pqr is horizontal 3rd Rs is horizontal forth other pqrs horizontal

Answer 1

Explanation:

PQ is horizontal

PQ is horizontalQR is horizontal

PQ is horizontalQR is horizontalRs is horizontal

PQ is horizontalQR is horizontalRs is horizontalany one will be horizontal

PQ is horizontalQR is horizontalRs is horizontalany one will be horizontalAnswer :

PQ is horizontalQR is horizontalRs is horizontalany one will be horizontalAnswer :b.

PQ is horizontalQR is horizontalRs is horizontalany one will be horizontalAnswer :b.Solution :

PQ is horizontalQR is horizontalRs is horizontalany one will be horizontalAnswer :b.Solution :For minimum deviation, incident angle is equal to emerging angle. Therefore, QR is horizontal.