An object is placed in front of a concave lens, beyond it's focal point. what can you say about images formed by this concave lens? a. they are always virtual. b. they always form behind the lens. c. they are always real. d. they are always larger than the object.
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Aforce is a vector quantity because it has both?
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An object is placed in front of a concave lens, beyond it's focal point. what can you say about imag...
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