Challenge - Ray Optics

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Section 19.8 Challenge - Ray Optics

Explanation 19.8.1. The Candle and the Mirrors.

A candle is located near two mirrors as shown in the figure below. Draw a ray diagram showing the location of the image that your eye sees when looking into the left mirror.

Figure 19.8.1. A candle and two mirrors.

ARC*S 19.8.2. Human Eye.

The average human eye is about 2.4 cm in diameter, that is, the lens is 2.4 cm from the retina. Assume you have an average eye, and that an object that is 5.0 cm high is located 25 cm from your eye. What focal length must your lens be to create an image on your retina?

Tip.

Sensemaking suggestion: What type of lens is this? How can you tell?

Activity 19.8.3. Metacognitive Reflection: Ray Optics.

You likely interact with ray optics frequently in your everyday life. Choose one experience or observation from your everyday life that your model for ray optics can help describe and give a brief description of it using the rules you built.

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Section 19.8 Challenge - Ray Optics

Explanation 19.8.1. The Candle and the Mirrors.

A*R*C*S 19.8.2. Human Eye.

Activity 19.8.3. Metacognitive Reflection: Ray Optics.

ARC*S 19.8.2. Human Eye.