SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise Comprehension Based Questions|2 Videos
MOVING CHARGES AND MAGNETISM
SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise MCQs(d )|1 Videos
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The pH of tears coming out of a person's eye is approximately
The time taken for 90% of a first order reaction to be completed is approximately
The ratio of number of photoelectrons ejected to the number of the photons falling on a metal surface is..........than.......... .
Ground state energy of H-atom is (-E_(1)) ,t he velocity of photoelectrons emitted when photon of energy E_(2) strikes stationary Li^(2+) ion in ground state will be:
A uniform electric field of magnitude E exists in between two parallel metal plates , as shown in the figure given below. One particle of mass m and charge q is projected along the central line between the plates. Particle just missed to strike upper plate , while coming out of plates. Find : (a)Time taken by the particle to come out of plates. (b)Speed of the particle as it comes out of plates. (c) Angle of deviation suffered by particle. The length of the plates is L and the distance between the plates is d. Ignore gravity .
A particle startsits SHM at t=0 . At a particular instant on its way to extreme position , x= (A)/(2) . Find the time taken by the particle to come back to this point after passing through the extreme position. Hint : t_(1) = time taken to go from x=0 to x= (A)/(2) t_(2) = time taken to go to extreme position and come back to mean position = (T)/(2) Required time = (T)/(2) - t_(1)
The velocity of a freely falling body when it strikes the ground is directly proportional to the square of the time taken by it to strike the ground. It takes 5 seconds to strike the ground, with a velocity of 10 m/sec. If it strikes the ground with the velocity of 40 m/sec, then for how long would it have travelled ?
SUNIL BATRA (41 YEARS IITJEE PHYSICS)-MODERN PHYSICS-MCQ (One Correct Answer
