Recent content by prashant3507

but even after thinking how the force moves, direction and all, it won't help me understand the significance of displacement in the equation...displacement of a gas is a concept hard to understand..

in Thermodynamics, in a book i have read that during expansion of a gas(system), W(on system by surroundings)=-ve..They have proved it using W=-force(external)*displacement. They are saying as displacement is positive and force is always considered as positive, W=-ve. But, how did they determine...

Absolutely right. I know that optics is an approximation, considering light travels in straight lines and not like wave. But what i meant to ask was that, "do only the 2 light "waves" arriving at the 2 ends of the slit get diffracted? i.e. do no other light wave arriving at the slit get...

hey but diffraction deals with the wave nature of light. Then how can u explain it using photons??:confused:

no i didn't misunderstood him, i even questioned him when the lecture was over. He emphasized on his point that in single slit only 2 rays at the end of slit get diffracted..

In single slit diffraction, my professor says that only 2 rays get diffracted. Both at the 2 ends of the slit. no other rays are diffracted. Is this true??:confused: What i think is all rays in the slit get diffracted and not only the 2 rays at the 2 ends of the slit.

hey during proof of expression of double slit interference at a point ,we take into account the interference due to 2 light rays emerging from 2 different slits. here why don't we account for the the interference also due to to light rays emerging from the same slit as in the single slit...

but both are moving in same direction hence with respect to frame of body a, b is moving with velocity 2v and not v.for better visualization sit on body a

kmarinas has said that KE with respect to each other is 0.5mv^2. But KE surely depends upon velocity with respect to your frame.(HERE BOTH BODIES ARE MOVING)

it is true that no electric field exists inside a conductor but still when we use wire(a conductor)in electric circuits electric field exists inside it.

wrong assumption basically your first assumption is only wrong "each have kinetic energies (with respect to each other) 0.5 mv^2" is wrong if one is moving with velocity v(with respect to fixed frame) towards other which is also moving with velocity v(with respect to fixed frame) their...