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How light maintain its speed after refraction? -(Naveen Saxena asked)
The speed of light in a medium is constant. When light enters from one medium to another, there is a change in the speed of light and the change is almost instantaneous. The speed of light in a medium depends on the electric and […]
Alpha particle and a proton are accelerated from rest by the same potential. Find the ratio of their de- broglie wavelength
(Asked by Amritha)
Charge of alpha particle = 2e
Mass of alpha particle = 4 u
Charge of proton = e
A Boat covers certain distance between two spots in a river taking t1 hrs going downstream and t2 hrs going upstream. What time will be taken by boat to cover same distance in still water?
posted by STUTI
Mitu asked – “100m long a train passing a 40m long bridge in 20.Find out the velocity of the train?”
Ans: The total distance to be traveled by the train to completely traverse the bridge is 100 + 40 = 140 m
Time = 20 s
From the relation,
Here you can find the equations of motion in the form of images which you can use in your documents.