Question
When is the National Science Day observed
annually?Solution
National Science Day is observed in India on 28 February every year to mark the discovery of the Raman effect by Indian physicist Sir C. V. Raman on 28 February 1928.
A train 120 m long runs at a speed of 54 km/h. How much time will it take to cross a telegraph pole? (Use 1 km/h = 5/18 m/s)
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Two trains, A and B, cross each other in 20 seconds and 30 seconds respectively, when running in opposite and the same direction respectively. If the sp...
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