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Author Question: A dentist uses a concave mirror (focal length 2 cm) to examine some teeth. If the distance from the ... (Read 52 times)

sammy

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on: Aug 10, 2020

Question 1

A convex mirror has a focal length of −20 cm. What is the position of the resulting image (in cm) if the image is upright and four times smaller than the object?

◦
−100

◦
−25

◦
−50

◦
−15

◦
−10


Question 2

A dentist uses a concave mirror (focal length 2 cm) to examine some teeth. If the distance from the object to the mirror is 1 cm, what is the magnification of the tooth?

◦
6

◦
1

◦
4

◦
2

◦
1.5
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Marked as best answer by sammy on Aug 10, 2020

diana chang

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Reply #1 on: Aug 10, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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sammy

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Reply 2 on: Aug 10, 2020
:D TYSM

kishoreddi

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Reply 3 on: Yesterday
Wow, this really help

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