5 Questions
Which one of these is the focal length of a lens with a 2D capacity?
40 cm
If the focal length of an upright lens is 50 cm, what is its power?
+5D
What is the focal length of a lens with a power of -2D?
30 cm
Which one of these is NOT a characteristic of light rays?
Absorption
What is the unit of measurement for focal length?
Centimeters
Test your knowledge of light and optics with this quiz! Answer questions about the path of light, the minimum speed of light, the reflection of light, and the use of mirrors and lenses in headlights. Put your physics knowledge to the test and see how well you do!
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