Question

Here X and Y indicate:
A. Greencolor,violetcolor B. Redcolor,violetcolor C. Violetcolor,redcolor D. Greencolor,redcolor

Answer 1

Answer:

B) Red and violet colored ray

Answer 2

X and Y indicate B. Red color, violet color

• In the given diagram, white light can be seen passing through the prism P1.
• As white light passes through the prism, it is dispersed into seven colours as the velocity of each colour is different.
• In this, X and Y are colours dispersed through the prism.
• X is the topmost colour while Y is the lowermost colour.
• During dispersion, violet colour has minimum velocity and hence, it suffers maximum deviation. While red colour has maximum velocity and hence, it suffers minimum deviation.
• Hence, X is red colour and Y is violet colour.