Which of the following statement is correct about constituents of white light based on above observations?

Options

A. White light consists of seven colours.
B. Violet colour suffers minimum deviation
C. Red light suffers maximum deviation.
D. All the colours of the white light move with different speed in vacuum.

Answer

A

Explanation

When the light disperses, various bands of light are clearly visible. It is clear from the figure that the violet light suffers maximum deviation and red light suffers minimum deviation. All the colours of the white light move with the same speed in air or vacuum but with different wavelengths and frequencies.