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Salmon has to perform the experiment of finding the focal length of a given concave mirror by using a distant object. Which of the following ‘setups’ will he choose apart from the mirror and screen provided ? A) a mirror holder, and a scale B) a mirror holder, a screen holder and a scale C) a screen holder and a scale D) a mirror holder and a screen holder |
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Answer» B) a mirror holder, a screen holder and a scale |
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