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JEE Main & Advanced Physics Gravitation / गुरुत्वाकर्षण Question Bank Acceleration Due to Gravity

  • question_answer
    An iron ball and a wooden ball of the same radius are released from a height ?h? in vacuum. The time taken by both of them to reach the ground is [NCERT 1975; AFMC 1998]

    A) Unequal

    B)               Exactly equal

    C)             Roughly equal

    D)               Zero

    Correct Answer: B

    Solution :

                    Time of decent\[t=\sqrt{\frac{2h}{g}}\]. In vacuum no other force works except gravity so time period will be exactly equal.


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