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4th Class Science Matter and Materials Question Bank Matter and Materials

  • question_answer
    Achin conducted an experiment to find out the amount of light that can pass through three different materials, a clear plastic sheet, a cardboard and a piece of tracing paper. All the materials have the same thickness. He shone a torch on the three materials and used a light sensor to measure how much light has passed through each of them. Which of the following graphs most likely shows the amount of light that has passed through each material?

    A)

    B)

    C)

    D)

    Correct Answer: C

    Solution :

    Cardboard is an opaque object, therefore, no light passes through it. Tracing paper is a translucent object that allows partial light to pass through it. Clear plastic sheet is a transparent object that allows most of the light to pass through it.


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