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Find the dispersion produced by a thin p...

Find the dispersion produced by a thin prism of `18^(@)` having refractive index for red ligh `=1.56` and for violet light `=1.68`.

Text Solution

Verified by Experts

We know that dispersion produced by a thin prism,
`theta =(mu_(v)-mu_(r))A `
Here, `mu_(v)=1.68, mu_(r)=1.56` and `A= 18^(@)`
`rArr theta=(1.68-1.56)xx18^(@)=2.16^(@)`
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