A rectangular glass prism of thickness d and absolute refractive index n is placed on a point object which is viewed vertically downward from above the pris...

Assessment: WAEC SSCE - Physics - 2007 (Objective) Subject: Physics

Question 1 Report

A rectangular glass prism of thickness d and absolute refractive index n is placed on a point object which is viewed vertically downward from above the prism. Which of the following expressions correctly defines the apparent upward displacement of the object?

\(\frac{d}{n}\)

dn

\(\frac{d}{n - 2}\)

\(\frac{d(n - 1)}{n}\)