If the object distance (s) is less than the focal length (f) then the image is ____________.
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[Ques. 2] The two most common types of poor eyesight are the result of improper ______________.
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[Ques. 3] In order to see a rainbow, the Sun must be _______________ you
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[Ques. 4] The sky is blue because of ____________.
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[Ques. 5] The orientation of an image seen projected on a screen by a single lens is always __________.
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[Ques. 6] A __________ lens is thinner at the center than the edges.
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[Ques. 7] A __________ lens is thicker at the center than the edges.
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[Ques. 8] A person looking through eyeglasses sees __________ images.
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[Ques. 9] Image height divided by object height gives __________.
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[Ques. 10] The type of mirror that will allow you to see large areas normally hidden from your view is __________.
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