9th Class Science Is Matter Around Us Pure Question Bank Assertion and Reason MCQs - Is Matter Around us Pure

  • question_answer
    Direction: For question given below two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes [a], [b], [c] and [d] as given below
    Assertion Tyndall effect is an optical property.
    Reason Scattering of beam of light by the colloidal particles is known as Tyndall effect.

    A) Both A and R are true and R is correct explanation of the A.

    B) Both A and R are true but R is not the correct explanation of the A.

    C) A is true but R is false.

    D) A is false but R is true.

    Correct Answer: A

    Solution :

    [a] Both Assertion and Reason are correct and Reason is the correct explanation of Assertion. The scattering of light by colloidal particle is an optical property and known as Tyndall effect.


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