Dispersion of light and colours - Jamb Physics Past Questions and Answers

Question 1:

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2:

• JAMB 2019

In Sunlight, a blue flower looks blue because we see the flower by the light it

A. Receives from our eyes
B. Disperses
C. Absorbed
D. Reflect

Question 3:

• JAMB 1978

The visible part of light consists of the following colours

A. Red, indigo, infra-red, violet, yellow, green and blue
B. Red, green, blue, violet, indigo, orange and yellow
C. Blue, ultra-violet, infra-red, red, yellow, indigo, violet,green and orange
D. Infra-red and ultra-violet
E. Red, orange, yellow, green, blue, indigo and infra-red

Question 4:

• JAMB 1984

What is the apparent colour of a RED SHIRT when viewed in PURE green light?

A. Red
B. Green
C. Yellow
D. Black
E. Blue

Question 5:

• JAMB 1985

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. White light has undergone total internal reflection in the prism
D. Different colours of white light travel with different speeds in glass
E. White ligth consist of yellow, green and red colours