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n number of identical equilateral prism...

n number of identical equilateral prisms are kept in contact as shown in figure. If deviation through a single prism is `delta.` Then, (n,m are integers)

A

if `n=2m,` deviation through n prisms is zero

B

if `n=2m+1,` deviation through system of n prisms is `delta`

C

if `n=2m,` deviation through system n prisms is `delta`

D

if `n=2m+1,` deviation through system of n prisms is zero

Text Solution

Verified by Experts

The correct Answer is:
A, B
For `n=2m,` it is just like slab.

`:. Deviation=0`
For `n=2m+1,` it is just like an identical prism of
larger size.
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