To determine the focal length of a convex lens, a student focuses a classroom window, a distant tree and the sun on the screen. In which case will the student be closer to acurate value of focal length?
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the sun is the correct answer as the image will be formed at the focus
Renee33:
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15
Sun is the correct answer because it is formed at the focus as the image.
Student will be closer to the focal length and while focusing a distant tree is carry out with lots of things.
This is managed with average solution and includes mean focal length discovered with a distant time.
It could look through lens in the direction of the object.
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