2. Questions Bank
  3. 8th Class
  4. Science
  5. Light

8th Class Science Light Question Bank Light Formative Objective Problems

  • question_answer
    Statement I: The radius of curvature and focal length of convex mirror are 80 cm and 40 cm Statement II: The relation between radius of curvature and focal length is R = 2f.

    A)  Both Statements are true, Statement-II is the correct explanation of Statement-I.

    B)  Both Statements are true, Statement-II is not correct explanation of Statement-I.

    C)  Statement-I is true. Statement-II is false.

    D)  Statement-I is false. Statement-II is true.

    Correct Answer: A

    Solution :

      \[R=2f\] Both Statements are true, Statement-II is the correct explanation of Statement-I.


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