What type of image, virtual or real, is produced in the following cases?

S

sunshine :]

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a. an object at the focal point of a magnifying glass
b. an object at the focal point of a camera's viewfinder
c. an object inside the focal point of a camera lens
d. an object outside the focal point of a refracting telescope's objective lens
e. an object outside the focal point of a camera's viewfinder
 
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