10th Class Science Solved Paper - Science-2016 Outside Delhi Set-I

  • question_answer 31)
    Suppose you have focused on a screen the image of candle flame placed at the farthest end of the laboratory table using a convex lens. If your teacher suggests you to focus the parallel rays of the sun, reaching your laboratory table/ on the same screen, what you are expected to do is to move the:
    (a) lens slightly towards the screen
    (b) lens slightly away from the screen
    (c) lens slightly towards the sun
    (d) lens and screen both towards the sun

    Answer:

    (a) lens slightly towards the screen


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