Question

Assertion (A): White light is dispersed by a glass prism into seven colours.

Reason (R): The red light bends the least while the violet the most when a beam of white light passes through a glass prism.

Options

• Both, Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).

• Both, Assertion (A) and Reason (R) are true, and Reason (R) is not the correct explanation of Assertion (A).

• Assertion (A) is true, but Reason (R) is false.

• Assertion (A) is false, but Reason (R) is true.

Answer 1

Both, Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).

Explanation:

The various light wavelengths refract at various angles. Compared to longer wavelengths, shorter wavelengths refract more.