A girl was playing with a thin beam of light from a laser torch by directing it from different directions on a convex lens held vertically. She was surprised to see that in a particular direction, the beam of light continues to move along the same direction after passing through the lens. State the reason for her observation. Draw a ray diagram to support your answer.
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the beam of light continues to move along the same direction after passing through the lens .state the reason for her observation .direction on a convex lens held vertcally .
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