Question of the Week : Answer to IIT-JEE Physics 2009/Optics

IIT-JEE Physics previous questions based on Bernoulli's... Continuing with our discussion on Bernoulli's theorem, we take a look at some of the previous questions asked in the Physics paper of IIT-JEE dealing with the same.We would also be trying to find a pattern in the theoretical aspects of the said questions. [ Answers in the next post dealing with Bernoulli's theorem ] *1]...

IIT-JEE PHYSICS 2009 FULLY SOLVED PAPERS / HOW TO SOLVE... Dear Readers, We are excited to announce two new posts to be published shortly...........Get to see the fully solved papers of the Physics section of IIT-JEE 2009.In addition,get to know the techniques needed to solve almost any physics problem..irrespective of whether it's a school level question or that belonging to...

Question of the Week : IIT-JEE Physics 2009 /Mechanics If the resultant of all the external forces acting on a system of particles is zero, then from an inertial frame,one can surely say that A] linear momentum of the system does not change in time B] kinetic energy of the system does not change in time C] angular momentum of the system does not change in time D] potential...

Question of the Week : Answer to IIT-JEE Physics 2009/Optics Given below is the answer to Optics question from IIT-JEE Physics paper 2009 V is taken by calculating the root of 2 x 10 x [ 20 - 12.8 ] which gives 12 m/s.... now, Considering the diffraction at the water surface, v/u2 = u/u1 or dv/dt = u2/u1 x dv/dt i.e, dv/dt = 4/3 x 12 = 16 m/s. Hence,option...

Question of the Week : from IIT-JEE 2009/Physics /... A ball is dropped from a height of 20 m above the surface of water in a lake. The refractive index of water is 4/3. A fish inside the lake, in the line of fall of the ball, is looking at the ball. At an instant when the ball is 12.8 m above the water surface, the fish sees the speed of the ball as (Take g = 10 ms–2) (a)...