Determination Of Refractive Index Of Glass And Liquid Using Snells Law - Physics Jamb 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 1981

The absolute refractive indices of glass and water are \(\frac{3}{2}\) and \(\frac{4}{3}\) respectively. The refractive index at the interface when a ray travels from water to glass is

A. \(\frac{1}{2}\)
B. \(\frac{8}{9}\)
C. \(\frac{9}{8}\)
D. \(\frac{17}{12}\)
E. 2

Question 3 :

• JAMB 1983

The refractive index of liquid is 1.5. If the velocity of light in vacuum is 3.0 x 10⁸ms^-1, the velocity of light in the liquid is

A. 1.5 x 10⁸m^-1
B. 2.0 x 10⁸m^-1
C. 3.0 x 10⁸m^-1
D. 4.5 x 10⁸m^-1
E. 9.0 x 10⁸m^-1

Question 4 :

• JAMB 1983

the speed of light in vacuum is 3.0 x 10⁸ms^-1. If the refractive index of a transparent liquid is \(\frac{4}{3}\), then the speed of light in the liquid is

A. 0.44 x 10 ⁸ms^-1
B. 2.25 x 10 ⁸ms^-1
C. 3.0 x 10 ⁸ms^-1
D. 4.0 x 10 ⁸ms^-1
E. 4.33 x 10 ⁸ms^-1

Question 5 :

• JAMB 1984

A coin is placed at the bottom of a cube of glass tern thick. If the refractive index of the glass is \(\mu\), how high does the coin appear to be raised to an observer looking perpendicularly into the glass?

A. \(\frac{1}{t - \mu}\)
B. \(\frac{t(\mu - I)}{\mu}\)
C. T (1 + \(\frac{1}{\mu}\))
D. -\(\mu\)
E. \(\mu\)t