🪞 Laws of Reflection and Mirrors
Master the fundamental principles of light reflection and mirror geometry. This quiz covers the law of reflection, angles of incidence and reflection, properties of plane/concave/convex mirrors, image formation, and real-world applications. Develop skills in ray tracing and predicting mirror behavior. **What you'll learn:** - Apply the law of reflection to solve mirror problems - Distinguish between angles of incidence and reflection - Compare properties of plane, concave, and convex mirrors - Predict whether images are real or virtual - Use ray tracing to analyze mirror geometry
Questions in this quiz
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- Question 1
A light ray strikes a plane mirror at an angle of 35° from the normal. What is the angle of reflection?
- Question 2
The angle of incidence is always measured from the surface of the mirror, not from the normal.
- Question 3
Which type of mirror produces a virtual, upright, and diminished image for all object distances?
- Question 4
A concave mirror has a radius of curvature of 40 cm. What is its focal length?
- Question 5
A plane mirror always produces a real image that can be projected onto a screen.
- Question 6
When an object is placed between the focal point and the mirror of a concave mirror, what type of image is formed?
- Question 7
A student uses a concave mirror as a makeup mirror. For this application, the object distance must be:
- Question 8
Convex mirrors are often used as security mirrors in stores because they provide a wider field of view.
- Question 9
A light ray is incident on a plane mirror at a 20° angle measured from the mirror surface. What is the angle of incidence (measured from the normal)?
- Question 10
Which of the following correctly describes what happens when an object is placed exactly at the center of curvature of a concave mirror?
- Question 11
The law of reflection applies only to mirrors and not to other smooth, reflective surfaces.
- Question 12
A concave mirror is used as a searchlight reflector. Where should the light source be positioned for the best focus?
- Question 13
Compared to a plane mirror, a concave mirror with a small focal length (highly curved) will produce a more magnified image when used as a makeup mirror. Why is this true?
- Question 14
When a light ray hits a mirror perpendicularly (at 0° to the normal), it will reflect straight back along the same path.
- Question 15
A ray diagram for a concave mirror shows two rays from an object: one passing through the focal point (F) and one passing through the center of curvature (C). What can be predicted from this ray diagram?
- Question 16
A convex mirror with focal length 15 cm is used to observe a wide area. An object 3 m away produces an image. Which statement best describes this image?
- Question 17
If two mirrors are placed at a 90° angle to each other, light will reflect between them multiple times.