Glass Prism - Jamb Physics Past Questions and Answers

Question 6:

• JAMB 2005

The figure above shows a plot of angles of deviation through a glass prism when light is incident at θ degrees on the prism. The incident angle that produces the minimum deviation is

A. 20^o
B. 18^o
C. 35^o
D. 25^o

Question 7:

• JAMB 2013

The angle of deviation of light of various colours passing through a triangular prism increases in the order

A. Red → green → blue
B. Green → violet → blue
C. Blue → red → green
D. Blue → green → red

Question 8:

• JAMB 2017

Calculate the angle of minimum deviation of a 60o prism of a refractive index 1.5 [sin-10.75 = 49o]

A. 38.00^o
B. 19.47^o
C. 16.25^o
D. 49^o