Recent content by saba sha

that drawn...light moved and and refracted as entered into water...now above fish or below fish?

hmmmmm as by snells law, angle of incidence and angle of refraction we can calculate. now the problem i faced is, are we aming perpendicular or at angle? and how we come to know that our our light will hit rightly on target? how i rite calculations here? new please guide

how i show you?

i am facing problem about where my light will spot and at how much depth it will goes? angle of incidence and refraction i calculated. but depth of light i can't calculate sorry i can't upload pics

as light move from 1 medium to another medium it stretched or squezed depending on the speed. please clear it. still i am unable to understand even after fig with which angle and where should i spot the lite?

thats right but the formula is to find the angle of incidence with the surface. not about the depth of the surface 2nd question is about. as light waves stretched or squeezed with the speed they enter the surface. do this matter as well?

if i know the answer to this question, why i posted it here...:( laser light mere guess above the fish.

hello if the fish is swiming below the water, and we need to catch it, we will spear the fish above, below or at the fish? if we will use laser light, thn above, below or at the fish?

thanks sir but why we use these sine and cosine? what these sine and cosine represent?

Hello why we use cosine and sine in simple harmonic motion? why we use particularly cosine with potential energy and sine with kinetic energy of simple harmonic oscillator? regards

hope u all are doing good please anybody explain in ddetail about eign value and eign levels regards