Question
An optical fibre works on the principle/theory
of?Solution
Optical fibers rely on the principle of total internal reflection. This allows light to travel through the fiber without significant loss of energy or intensity, even around bends.
- Two vans βKβ and βLβ start at the same time from towns βGβ and βHβ towards each other. When they meet after 6 hours, van βLβ has travel...
A train running with a speed of 99 km/hr can cross a pole in 13 seconds and a platform in 17 seconds. Find the length of the platform.
Two trains, A and B, cross each other in 15 seconds and 35 seconds respectively, when running in opposite and the same direction respectively. If the sp...
- Train 'M' can cross a pole in 10 seconds and a 200 metres long bridge in 15 seconds. Train 'N' whose length is 50% of the length of train 'M' runs in the s...
Train βAβ running with a speed of 90 km/h crosses a pole in 7 seconds. If the time taken by train βAβ to cross train βBβ running with a spee...
A 160 m long train crosses another 290 m long train running in the opposite direction in 10 seconds. If the shorter train crosses a pole in 8 seconds, w...
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 ...
Two trains, each 150 meters long, are running in opposite directions. If the speed of one train is twice that of the other and they take 20 seconds to c...
Two trains 165 metres and 135 metres in length are running towards each other on parallel tracks, one at the rate 70 km/hr and another at 38 km/hr. In h...
Train βAβ can cross a pole in 4 seconds and a 150 metre long platform in 10 seconds. If the ratio of length of train βAβ and train βBβ is 2:...