SAYANTAN DATTA

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Don't take the lower part

If the charge q moves with a velocity v and displaced by an amount of dl(=v.dt) . Then the work done:  dW= q(v×B).v.dt         =qB.(v×v).dt         =0 By this we can say that Magnetic Forcs does not work.

The Magnetic Force on a charge Q moving with velocity v in a magnetic field B is given by: F=Q(v×B) That is called the Lorentz Force. In presence of electric field E it is defined as F=Q[E+(v×B)] Now this type of Force I s called Magnetic Force.

The  Wow! signal  was a strong narrowband radio signal received on August 15, 1977, by  Ohio State University 's  Big Ear  radio telescope in the United States, then used to support the  search for extraterrestrial intelligence . The signal appeared to come from the direction of the constellation  Sagittarius  and bore the expected hallmarks of  extraterrestrial  origin. Astronomer Jerry R. Ehman discovered the anomaly a few days later while reviewing the recorded data. He was so impressed by the result that he circled the reading on the computer printout, 6EQUJ5, and wrote the comment  Wow!  on its side, leading to the event's widely used name. The reading was 6EQUJ5 in the computer print. The signal lasts for 72 second. Further, the signal was at a frequency of about 1,420 megahertz (MHz), also called the 21-centimter line. That's the same frequency as radio waves emitted by neutral hydrogen gas in ...

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There can be Many Papers 2,3,4 such. But for core course there is a similar type of marks Distribution. And I know this very well as I am also a student of #KUPHYSICS. So let's go... There will be 5 questions of 2 marks =10 2 questions of 5 marks=10 2 questions of 10 marks=20                                         ------------ Total-------.                         40 In 1st and 2nd sem there will be 2 papers of core(hons),1 AECC, and 1 GE. In 3rd and 4th 3 paper of core course and 1 GE and 1 SEC. AND For final two sem there will be 2 core papers, 2 DSE paper. So this 3rd year is very tough. For GE If math it will be for 60 marks I mean there will 4 questions of 5 marks. If Chemistry that will of 40 marks as there will be 20 marks of practical.  In every core paper there will 20 marks in practic...