Question
Which subatomic particle has negligible mass
?Solution
Electrons have negligible mass compared to protons and neutrons, which constitute the majority of the atom's mass.
A train crosses a pole and a platform of length 420 metres in 10 seconds and 25 seconds, respectively. Find the length of train.
A 640-metre long train takes 16 seconds to cross a pole. If it takes 40 seconds to cross a bridge, then find the length of the bridge. (in km)
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...
A high-speed Bullettrain takes 20 seconds to cross a platform. The length of the Bullettrain is 40% less than the length of the platform. If the Bullett...
A train of 250 metres is moving at a speed of 90 km/h. It completely crosses a platform in 45 seconds. What is the platform’s length?
- Two towns D and E are 576 km apart. A bus starts from D at 5:15 a.m. at 64 km/h. Another bus starts from E at 6:45 a.m. towards D at 80 km/h. When will the...
A train crosses a platform 100 m long in 60 s at a speed of 45 km/h. The time taken by the train to cross an electric pole is
A 600-metre long train takes 12 seconds to cross a pole. If it takes 48 seconds to cross a bridge, then find the length of the bridge.
Time is taken by two trains running in opposite directions to cross a man standing on the platform in 27 seconds and 17 seconds respectively. It took 21...
- Express train leaves Bengaluru at a certain time. After 3 hours, another train departs and moves in the same direction at the speed of 180 km/h. If this se...
