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Please answer number 2

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Please answer number 2

Read the lab and refer to your textbook as needed to answer the following questions before coming to lab. A simple glass convex lens can be used as a magnifying glass, or as something called a "burning glass' or "burning lens." When used as a burning glass, sunlight is directed through the lens and focused on the object being heated. To do this most effectively, the lens must be at a special distance from the object being heated. P Figure 1: A lens focusing sunlight on a leaf. 1. If we want to ignite a dead leaf with a burning glass, and assume the sun is an infinite distance away, how far above the leaf should the burning glass be held to focus the rays from the sun and ignite it? Explain why. 2. If we instead use the same lens as a magnifier, we can place a leaf at half the distance you found in question 1 and look through the lens. How much magnification of the leaf would this achieve? Show your work.
Transcribed Image Text:Read the lab and refer to your textbook as needed to answer the following questions before coming to lab. A simple glass convex lens can be used as a magnifying glass, or as something called a "burning glass' or "burning lens." When used as a burning glass, sunlight is directed through the lens and focused on the object being heated. To do this most effectively, the lens must be at a special distance from the object being heated. P Figure 1: A lens focusing sunlight on a leaf. 1. If we want to ignite a dead leaf with a burning glass, and assume the sun is an infinite distance away, how far above the leaf should the burning glass be held to focus the rays from the sun and ignite it? Explain why. 2. If we instead use the same lens as a magnifier, we can place a leaf at half the distance you found in question 1 and look through the lens. How much magnification of the leaf would this achieve? Show your work.
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