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Find the distance of the image formed when an object placed at 10 centimeter from the convex lens whose focal length is 4 cm. |
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Answer» :Image distance is 6.67 cmExplanation :Object Position (u) = -10 cmFocal LENGTH (F) = 4 cmConvex Lens Use lens formula :1/f = 1/v - 1/u⇒1/v = 1/f + 1/u⇒1/v = 1/4 - 1/10⇒1/v = 10 - 4/40⇒1/v = 6/40⇒v = 40/6⇒v = 6.67Image is formed at 6.67 cmNow, use formula for MAGNIFICATION ⇒m = v/u⇒m = 6.67/-10⇒m = -0.667Magnification is -0.667Nature of Image is Real and Inverted |
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