Question Detail

PHY 104 Reflection and Refraction of Light Objective Question

Question

The relationship for refraction at a spherical surface (page 53) involves the indices of refraction (n1, n2), object distance (do), image distance (di), and radius of curvature (R). Which equation correctly represents this relationship?
Options
A n<sub>1</sub>/d<sub>o</sub> + n<sub>2</sub>/d<sub>i</sub> = n<sub>1</sub>/R
B n<sub>1</sub>/d<sub>o</sub> + n<sub>2</sub>/d<sub>i</sub> = (n<sub>2</sub> - n<sub>1</sub>)/R
Correct Answer
C n<sub>2</sub>/d<sub>o</sub> + n<sub>1</sub>/d<sub>i</sub> = (n<sub>2</sub> - n<sub>1</sub>)/R
D d<sub>o</sub>/n<sub>1</sub> + d<sub>i</sub>/n<sub>2</sub> = R/(n<sub>2</sub> - n<sub>1</sub>)
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 53 shows the equation: 'n1/do + n2/di = (n2 - n1)/R'.

Hint

Pay close attention to the subscripts for the indices of refraction and their positions in the numerator and denominator.

Question Info