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2+3+5+10+20+..................+10240 ...
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in the exp. F=Q1Q2 ------- 4πεr2 if permitivity of the medium increases,the medium should permit more field lines.but actually the force decreases from the above exp. ...
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in the production of x-rays,what happens if the electron that is sent hits the nucleus of the heavy metal atom. ...
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let f:R-->R is a continous function on [1,3].let f(x) takes rational valeus for all x.if f(2)=10.f'(2)=0.find f(x) and f(1.5) ...
