4. Waves and Optics

Geometric Optics — Quiz

Test your understanding of geometric optics with 5 practice questions.

Practice Questions

Question 1

Which of the following describes the image formed by a convex lens when the object is placed between the focal point and twice the focal length ($F < d_o < 2F$)?

Question 2

What is the primary function of a diverging lens?

Question 3

If a light ray travels from a medium with a refractive index of $n_1$ to a medium with a refractive index of $n_2$, and $n_1 > n_2$, what condition must be met for total internal reflection to occur?

Question 4

An object is placed $30 \text{ cm}$ in front of a concave mirror with a focal length of $15 \text{ cm}$. What is the magnification of the image?

Question 5

According to the sign convention for lenses and mirrors, what is the sign of the image height ($h_i$) for an upright image?