Practice Reflection in Physics
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
The bouncing of a wave off a surface, returning it back into the original medium.
Like a ball bouncing off a wall—the wave reverses direction at the boundary.
Example 1
easyA light ray hits a plane mirror at an angle of 35° to the normal. What is the angle of reflection?
Example 2
mediumA light ray strikes a mirror. The angle between the incident ray and the reflected ray is 80°. What is the angle of incidence?
Example 3
easyA ray of light hits a smooth surface at an angle of 0° to the normal (perpendicular). What happens?
Example 4
mediumA concave mirror has a focal length of 15 \text{ cm}. An object is placed 30 \text{ cm} from the mirror. Use the mirror equation \frac{1}{f} = \frac{1}{d_o} + \frac{1}{d_i} to find the image distance. Is the image real or virtual?