Question

When white light is passed through a hollow prism then there is

• A. Both dispersion and deviation
• B. No dispersion and no deviation
• C. Only dispersion
• D. Only deviation

Answer 1

The correct option is B

No dispersion and no deviation

As there will be no other medium in the hollow prism, there will be no change in the refractive index between the medium's throught which the white light is travelling.

Thus, there will be no deviation or dispersion of light as dispersion will occur only if the different colurs in white light refract to different extents due to the change in refractive index between the two mediums.