A proton is fired from very far away towards a nucleus with charge Q 120 e e is the

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Previous Question: Consider the motion of a positive point charge in a region where there are simultaneous uniform electric and magnetic fields j E  E0  and j B  B0  . At time t = 0, this charge has velocity v  in the x-y plane, making an angle  with x-axis. Which of the following option(s) is(are) correct for time t > 0 ? (A) If  = 0°, the charge moves in a circular path in the x-z plane. (B) If  = 0°, the charge undergoes helical motion with constant pitch along the y-axis. (C) If  = 10°, the charge undergoes helical motion with its pitch increasing with time, along the y-axis. (D) If  = 90°, the charge undergoes linear but accelerated motion along the y-axis. Next Question: A lamina is made by removing a small disc of diameter 2R froma bigger disc of uniform mass density and radius 2R, as shown in the figure. The moment of inertia of this lamina about axes passing through O and P is IO and IP, respectively. Both these axes are perpendicular to the plane of the lamina. The ratio Ip/Io to the nearest integer is :

(#M40027941) IIT-JEE question 2012 question Keep an EYE

A proton is fired from very far away towards a nucleus with charge Q = 120 e, where e is the electronic charge.
It makes a closest approach of 10 fm to the nucleus. The de Brogle wavelength (in units of fm) of the proton at
its start is: Asked In IIT-JEE MAN (11 years ago); Unsolved; Is this Puzzle helpful? (0) (0) Submit Your Solution

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Latest IIT-JEE Aptitude Question SOLUTION: A proton is fired from very far away towards a nucleus with charge Q = 120 e, where e is the electronic charge. It makes a closest approach of 10 fm to the nucleus. The de Brogle w

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(#M40027941) IIT-JEE question 2012 question Keep an EYE

A proton is fired from very far away towards a nucleus with charge Q = 120 e, where e is the electronic charge.
It makes a closest approach of 10 fm to the nucleus. The de Brogle wavelength (in units of fm) of the proton at
its start is

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Latest IIT-JEE Aptitude Question SOLUTION: A proton is fired from very far away towards a nucleus with charge Q = 120 e, where e is the electronic charge. It makes a closest approach of 10 fm to the nucleus. The de Brogle w

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(#M40027941) IIT-JEE question 2012 question Keep an EYE

A proton is fired from very far away towards a nucleus with charge Q = 120 e, where e is the electronic charge. It makes a closest approach of 10 fm to the nucleus. The de Brogle wavelength (in units of fm) of the proton at its start is

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A proton is fired from very far away towards a nucleus with charge Q = 120 e, where e is the electronic charge.
It makes a closest approach of 10 fm to the nucleus. The de Brogle wavelength (in units of fm) of the proton at
its start is