Neco Model Questions Vol1 2017 Physics Question 38
Practice objective / multiple choice question 38 from the 2017 Neco Model Questions Vol1 Physics examination.
A triangular prism made of glass with refractive index \(n=1.50\) for the given light has an apex angle \(A=40^{\circ}\). A ray of light strikes one face of the prism at an angle of incidence \(i_{1}=30^{\circ}\) with respect to the normal. (i) Find the angle of deviation \(\delta\) of the emergent ray. (ii) For the same prism, the refractive index is \(n_{600}=1.48\) for light of wavelength \(600\ \text{nm}\) and \(n_{450}=1.52\) for light of wavelength \(450\ \text{nm}\). Determine the angular dispersion \(\Delta\delta\) between the emergent rays of these two wavelengths.
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About This Question
This is Neco Model Questions Vol1 2017 Physics Question 38. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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