Calculate the dispersive power of crown glass where μV=1.456 and μR=1.414.(a) 0.0096(b) 0.45(c) 0.96(d) 0.096I got this question by my college director while I was bunking the class.I'm obligated to ask this question of Ray Optics in portion Ray Optics and Optical Instruments of Physics – Class 12

Calculate the dispersive power of crown glass where μV=1.456 and μR=

1.	Calculate the dispersive power of crown glass where μV=1.456 and μR=1.414.(a) 0.0096(b) 0.45(c) 0.96(d) 0.096I got this question by my college director while I was bunking the class.I'm obligated to ask this question of Ray Optics in portion Ray Optics and Optical Instruments of Physics – Class 12
Answer» The CORRECT answer is (d) 0.096 The best I can explain: Given: The refractive INDEX for VIOLET color = 1.456; Refractive index for RED color = 1.414 Required equation ➔ ω=\(\frac {\mu_V – \mu_R}{\mu – 1}\) Also, μ=\(\frac {(\mu_V+\mu_R)}{2}\) μ=\(\frac {1.456+1.414}{2}\)=1.435 Thus, ω=\(\frac {1.456-1.414}{1.435-1}\) ω=\(\frac {0.042}{0.435}\) ω=0.096 Therefore, the dispersive power of crown glass is 0.096.

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