Question

Assertion :Two similar trains are moving along the equatorial line with the same speed but in opposite direction. They will exert equal pressure on the rails. Reason: In uniform circular motion the magnitude of acceleration remains constant but the direction continuously changes.

• A. Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion
• C. Assertion is true but Reason is false
• D. Assertion is false but Reason is true

Answer 1

The correct option is D Assertion is false but Reason is true

The two given trains would exert unequal pressure on the rails as the train moving in the direction of earth's rotation would have lesser centripetal force acting on it. In a uniform circular motion, magnitude of acceleration remains constant but the direction of acceleration changes. Thus, assertion is an incorrect statement and reason is a correct statement. Hence, option D.