Question

Statement 1: When white light ray passes through a prism it disperses into seven different colours this phenomenon is called dispersion.

Statement 2: Refraction depends on upon the wavelength of light and since different colours have different wavelengths hence are refracted at the different angle and so they are split into the colour spectrum.

• A. Statement 1 and 2 are correct but statement 2 is not the reason for statement 1
• B. Statement 1 and 2 are correct and statement 2 is the correct reason for statement 1
• C. Both statements are wrong
• D. Statement 1 is correct but statement 2 is incorrect

Answer 1

The correct option is B Statement 1 and 2 are correct and statement 2 is the correct reason for statement 1

Refraction depends on upon the wavelength of light and since different colours have different wavelength so they are refracted at the different angle and so they are split into the colour spectrum.