Answer:
Change in velocity = 0.219 × 10⁸ m/s (Approx)
Explanation:
Given:
Ray moving through glass (n1) = 1.51
Ray moving through (n2) = 1.36
Find:
Change in velocity.
Computation:
Speed of light = 3 × 10⁸
Change in velocity = [(c/n2) - (c/n1)]
Change in velocity = [(c/n1) - (c/n1)]
Change in velocity = 3 × 10⁸[(1/1.36) - (1/1.51)]
Change in velocity = 3 × 10⁸[0.7352-0.6622]
Change in velocity = 3 × 10⁸[0.073]
Change in velocity = 0.219 × 10⁸ m/s (Approx)
