Question
Water gets cooled, when ice is immersed in it. It is
because of the phenomenon ofSolution
When ice is immersed in water it starts melting. It takes latent heat from water for melting and the temperature of the water decreases, therefore water becomes cool.
A person sees a train passing over 2 km long bridge. The length of the train is half that of bridge if the train clears the bridge in 6 mins. What is th...
Train X leaves Pune at a certain time. After 2 hours Intercity Express leaves the same station and travels in the same direction at the speed of 100 km/...
Two trains, each 110 meters long, are running in opposite directions. If the speed of one train is twice that of the other and they take 12 seconds to c...
A person sees a train passing over 4 km long bridge. The length of the train is half that of bridge if the train clears the bridge in 8 mins. What is th...
A 250-meter-long train crosses a 150-meter-long train coming from the opposite direction in 20 seconds. If the speed of the first train is 45 km/h, then...
Train ‘A’ travelling with a speed of 42 km/h can cross a pole in 6 seconds. If the length of train ‘B’ is 10% less than that of train ‘A’ an...
Train A takes 24 seconds to cross a pole and 20sec to cross a man walking at the speed of 5.6 meter per second towards it. Train B travels 1 meter per s...
- Train P is 180 m long and crosses a platform of 120 m in 15 seconds. The speed ratio of train P to train Q is 4:5. What is the length of train Q if it cros...
Two trains of length 300 metres and 280 metres are moving in opposite directions with speeds 12 m/s and 18 m/s. If initially they are 200 metres apart, ...
A train travelling at the speed of 72 km/hr crosses another train, having 60 meters less length and travelling in opposite direction at the speed of 54 ...
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