A prism (apex angle `A le 90°)` produces minimum deviation that is equal to the apex angle. What can be said about the refractive index of the material of the prism.
Answered Feb 05, 2023
Correct Answer - `sqrt(2) lt mu lt 2`
Correct Answer - C Dispersion will not occur for a monochromatic light.
Correct Answer - D `i=(pi)/(2),e=(pi)/(4),A=(pi)/(4)` `(sini)/(sin r_(1))=(sine)/(sinr_(2))=mu` `rArr sinr_(1)=(1)/(mu) and sinr_(2)=(1)/(sqrt2mu)` Since `r_(1)+r_(2)=A=(pi)/(4) rArr r_(1)=(pi)/(4)-r_(2)` `rArr sinr_(1) =(1)/(sqrt2)cosr_(2)- (1)/(sqrt2)sinr_(2)` `=sqrt2 sinr_(1)+sinr_(2)=cosr_(2)` `=(sqrt2)/(mu)+(1)/(sqrt2mu)=sqrt(1-(1)/(2mu^(2)))= (1)/(mu^(2))(2+(1)/(2)+2)=1-(1)/(2mu^(2))` `= (1)/(mu^(2))((9)/(2)+(1)/(2))=1` `mu^(2)=5rArr mu=sqrt5 `.
Correct answer is (B) (μ – 1)A
Correct Answer - `1.53^(@)`
Correct Answer - `0^(@)`
Correct Answer - 1.532
Correct Answer - `30^(@), 45^(@), 30^(@)`
Correct Answer - `58.5^(@)`
Correct Answer - 1.64
Correct Answer - `1^(@)`
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