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Question: Answered & Verified by Expert
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
PhysicsGravitationJEE Main
Options:
  • A Unequal
  • B Exactly equal
  • C Roughly equal
  • D Zero
Solution:
1645 Upvotes Verified Answer
The correct answer is: Exactly equal
Time of decent $t=\sqrt{\frac{2 h}{g}}$. In vacuum no other force works except gravity so time period will be exactly equal.

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