(a) Dispersion of light and colours - Jamb Physics Past Questions and Answers

Question 26:

• JAMB 2016

Which of the following is obtained when a magenta is mixed with green colour?

A. Yellow
B. Blue
C. White
D. Red

Question 27:

• JAMB 2018

A narrow beam of white light can be split up into different Colours by a glass prism. The correct explanation is that

A. White light Is an electromagnetic wave
B. The prism has all the colours of the white light
C. Different colours of white light travel with different speeds in glass
D. White light has undergone total Internal reflection in the prism

Question 28:

• JAMB 2019

When blue and green colours of light are mixed, the resultant colour is

A. Cyan
B. Magenta
C. Black
D. Yellow

Question 29:

• JAMB 2019

A mixture of blue and red pigment when illuminated by white light will appear

A. Green
B. Orange
C. Purple
D. Magenta

Question 30:

• JAMB 2019

The angular dispersion of a prism depends on

A. The index of refraction only
B. The angle of incidence as well as the index of refraction
C. The angle of incidence only
D. The thickness of the prism only