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A biology student uses a simple magnifier to examine the structural features of an insect's wing. The wing is held 3.60 cm in front of the lens, and the image is formed 25.0 cm from the eye. (a) What is the focal length of the lens? Your response differs from the correct answer by more than 100%. cm (b) What angular magnification is achieved? 6.94 Need Help?

A biology student uses a simple magnifier to examine the structural features of an insect's wing. The wing is held 3.60 cm in front of the lens, and the image is formed 25.0 cm from the eye. (a) What is the focal length of the lens? Your response differs from the correct answer by more than 100%. cm (b) What angular magnification is achieved? 6.94 Need Help?

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A biology student uses a simple magnifier to examine the structural features of an insect's wing. The wing is held 3.60 cm in front of the lens, and the image is formed 25.0 cm from the eye. (a) what is the focal length of the lens? Your response differs from the correct answer by more than 100%. cm (b) What angular magnification is achieved? 6.94 Need Help? Submt Answer MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Find an equation for the length L of a refracting telescope in terms of the focal length of the objective , and the magnification m. (b) A knob adjusts the eyepiece forward and backward. Suppose the telescope is in focus with an eyepiece giving a magnification of 33.0. Dy what distance must the eyeplece be adjusted when the eyepiece is replaced, with a resulting magnification of 1.0 x 10 Must the eyepiece be adjusted backward or forward? Assume the objective lens has a focal length of 2.6i m. (Use a positive value if the eyepiece must be moved forward toward the objective lens and negative values if the eyepiece must be moved backwards.)
Transcribed Image Text:A biology student uses a simple magnifier to examine the structural features of an insect's wing. The wing is held 3.60 cm in front of the lens, and the image is formed 25.0 cm from the eye. (a) what is the focal length of the lens? Your response differs from the correct answer by more than 100%. cm (b) What angular magnification is achieved? 6.94 Need Help? Submt Answer MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Find an equation for the length L of a refracting telescope in terms of the focal length of the objective , and the magnification m. (b) A knob adjusts the eyepiece forward and backward. Suppose the telescope is in focus with an eyepiece giving a magnification of 33.0. Dy what distance must the eyeplece be adjusted when the eyepiece is replaced, with a resulting magnification of 1.0 x 10 Must the eyepiece be adjusted backward or forward? Assume the objective lens has a focal length of 2.6i m. (Use a positive value if the eyepiece must be moved forward toward the objective lens and negative values if the eyepiece must be moved backwards.)
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