Statement I: There is no dispersion of light refracted through a rectangular glass slab. Statement II: Dispersion of light is the phenomenon of splitting of a beam of white light into its constituent colours.

Question

Statement I: There is no dispersion of light refracted through a rectangular glass slab. Statement II: Dispersion of light is the phenomenon of splitting of a beam of white light into its constituent colours. (A) If both statements are true and statement II is the correct explanation of statement I . (B) If both statements are true but statement II is not the correct explanation of statement I. (C) If statement 1 is true but statement II is false. (D) If both statements are false.

Tardigrade Admin · Accepted Answer

After refraction at two parallel faces of a glass slab, a ray of light emerges in a direction parallel to the direction of incidence of white light on the slab. As rays of all colours emerge in the same direction (of incidence of white light), hence there is no dispersion, but only lateral displacement.

Q. Statement I: There is no dispersion of light refracted through a rectangular glass slab. Statement II: Dispersion of light is the phenomenon of splitting of a beam of white light into its constituent colours.

If both statements are true and statement II is the correct explanation of statement I .

If both statements are true but statement II is not the correct explanation of statement I.

If statement 1 is true but statement II is false.

If both statements are false.

Q. Statement I: There is no dispersion of light refracted through a rectangular glass slab.
Statement II: Dispersion of light is the phenomenon of splitting of a beam of white light into its constituent colours.