Definition of refractive index of a medium - 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 1980

Given that SQ = 10cm and SP = 6cm, the refractive index of a block of glass shown above is

A. 0.30
B. 0.60
C. 1.67
D. 2.33
E. 2.36

Question 3:

• JAMB 1982

If the refractive index of a medium is V2, what is the critical angle?

A. 45^o
B. 50^o12'
C. 56^o25'
D. 75^o
E. 90^o

Question 4:

• JAMB 1986

If the refractive index of glass is 1.5, what is the critical angle at the air-glass interface?

A. Sin^-1\(\frac{1}{2}\)
B. Sin^-1\(\frac{2}{3}\)
C. Sin^-1\(\frac{3}{4}\)
D. Sin^-1\(\frac{8}{9}\)

Question 5:

• JAMB 1991

A trough 12.0cm deep is filled with water of refractive index \(\frac{4}{3}\). By how much would a coin at the bottom of the trough appear to be displaced when viewed vertically from above the water surface?

A. 3.0cm
B. 6.0cm
C. 9.0cm
D. 16.0cm