Question
Which of the following metals have the maximum
electrical resistivity?Solution
Aluminium2.8 x 10-8 Copper      1.7 x 10-8 Gold    2.4 x 10-8 Silver    1.6 x 10-8
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...
There are two trains A and B. A start from point X at 6 AM towards point Y. Another train B starts at 7 AM from point X. If they meet at 12 PM an...
Two trains running in a opposite directions crosses pole in 84s and 57s respectively and they cross each other in 72s. Find the ratio of their speeds?
A train 256 meter long running with the speed of 80 kmph crosses a bridge in 18 seconds then what is the length of bridge?
- Two stations P and Q are 486 km apart. A train leaves P at 6:45 a.m. at 54 km/h. Another train leaves Q at 8:15 a.m. towards P at 81 km/h. When will they m...
- Train A when travelling with a speed of 108 km/h crosses a pole in 8 seconds. Find the time taken by the train A to cross another train B of length 50% mor...
A train 325 metre long takes 45 sec to cross a man running at a speed of 6 km/hr in the direction opposite to that of train. What is the speed of the tr...
Train P travelling at 62 km/hr crosses another train Q, having three fourth of its length and travelling in opposite direction at 28 km/hr in 14 seconds...
- Two vans ‘K’ and ‘L’ start at the same time from towns ‘G’ and ‘H’ towards each other. When they meet after 6 hours, van ‘L’ has travel...
Train M, ‘x’ metres long crosses (x – 35) metres long platform in 28 seconds while train N having the length (x + 35) metres crosses the same plat...
