A beam of light consisting of red, green and blue colurs is incident on a right angled prism as shown in figure. The refractive indices of the maaterial of the prism for above red, green and blue wavelengths are 1.39, 1.44 and 1.47, respectivley .

Options

A. separate part of the red color from the green and blue colors
B. separate part of the blue from the red and green colors
C. separate all the three colors from the other two colors
D. not separate even partially , any colors from the other two colors

Answer

A

Explanation

`mu_(red)"sin"I = 1 "sin"r`
`1.39 xx (1)/(1.414) = "sin"r`
`"sin"r lt ` implies` possible(refraction is possible)

`mu_("green")xx "sin"I implies 1.44 xx (1)/(1.41) gt 1 implies "not possible"`
Same for blue `1.47xx (1)/(1.41)gt1`
`implies` It also not possible.