Question
What is the most common material used for making
transistors?Solution
Silicon
Length of a train, whose speed is 60 km/h, is 300 metres. Find the time taken (in seconds) by train to cross a bridge of length 600 metres.
- A train, running at the speed of 72 km/h, is 300 metres long. How much time (in seconds) will it take to pass over a bridge that is 600 metres long?
Two trains of equal lengths take 20 seconds and 30 seconds respectively to cross a telegraph post. If the length of each train be 240 metres, in what ti...
Train 'E' leaves at 9:00 PM on Wednesday from Kolkata station and reaches Bangalore station at 11:00 AM the next day, while train 'F' leaves at 8:30 PM ...
A train running at 90 km/hr crosses a vertical pole in 5 seconds and a platform in 20 seconds. Determine the length of the platform.
A train whose speed is 40 m/s crosses a bridge in 20 seconds. Another train which is 80m shorter than the first train crosses the same bridge at the sp...
A train has to cover a distance of 210 km in 14 hours. If it covers half journey in 4/7th time, then the speed of covering the remaining dist...
- Train ‘X’ is 360 metres long and takes 18 seconds to cross a pole. Speed of train ‘Y’ is 22 m/sec. If both trains cross each other in 16 seconds wh...
A train crosses a pole and a platform of length 575 metres in 11 seconds and 34 seconds, respectively. Find the length of train.
Train X, traveling at a speed of 72 km/hr, crosses another train Y, which is moving in the opposite direction at a speed of 108 km/hr, in 't' seconds. I...
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