HC Verma: Concepts of Physics - Volume 2 The Special Theory of Relativity Page 458: Q9 Solution: According to the station clocks, two babies are born at the…

QPage 458: Q9: HC Verma: Concepts of Physics - Volume 2 The Special Theory of Relativity Page 458: Q9 Solution: According to the station clocks, two babies are born at the…

According to the station clocks, two babies are born at the same instant, one in Howrah and other in Delhi. a) Who is elder in the frame of 2301 Up Rajdhani Express going from Howrah to Delhi? b) Who is elder in the frame of 2302 Dn Rajdhani Express going from Delhi to Howrah.

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**Answer:** (a) The baby born in Howrah is elder. (b) The baby born in Delhi is elder. **Step-by-Step Explanation:** (a) In the frame of the train going from Howrah to Delhi, Delhi is ahead in the direction of motion. Events simultaneous in the ground frame are not simultaneous in the train frame. The event in Delhi (ahead) occurs **earlier** in the train frame. Hence, the baby born in Howrah is elder. (b) For the train going from Delhi to Howrah, Howrah is ahead. The event in Howrah occurs earlier. Hence, the baby born in Delhi is elder .

QPage 458: Q9: HC Verma: Concepts of Physics - Volume 2 The Special Theory of Relativity Page 458: Q9 Solution: According to the station clocks, two babies are born at the…

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