1.

A trihedral prism with refracting angle 60^(@) deviates a light ray by 30^(@). The refractive index of the material of prism

Answer»

may be EQUAL to `sqrt(2)`
can not be greater than `sqrt(2)`
can not be less than `sqrt(2)`
none of these

Solution :`delta_(min)LE30^(@)`
`mu=("sin"((60+delta_(min))/(2)))/("sin"(60)/(2))le("sin"((60+30^(@))/(2)))/("sin"((60)/(2)))=sqrt(2)`
`{:(,,mulesqrt(2),),(delta_(max)le30^(@),,,),(i+90-60ge30^(@),,rArrge0^(@),),(muge(2)/(sqrt(3)),,mu" sin "60^(@)GE1" sin "90^(@),):}`


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