Light passes in a straight line., TRUE, FALSE, White light is composed of how many colours?, FOUR, SEVEN, SIX, ONE, An image which can be obtained on a screen is called-, reflection, real image, virtual image, A concave lens always forms a virtual image., TRUE, FALSE, When used to see objects magnified,the convex lens is called-, concave lens, magnified lens, magnifying glass

LIGHT

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排行榜

視覺風格

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切換範本

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