Solving questions from past papers about light-part 1- IGCSE -physics-Cambridge

Hello guys today i'm going to solve some questions about light ........................................enjoy with physics👌👌👌

[@00l80]

JAZAKALLAH KHAIRAN

[@abdullah_z3870]

Hi

[@subhansajjad8343]

How critical angle 43, how we would get to know?

[@prince.ganyani]

i was asking myself if this guy was just guessing or if he actually knew

[@00l80]

Critical angle is same as refractive index I guess

[@rayyanhashmi0]

by calculating it, sin c=1/n where sin c is critical angle and n is refractive index.

[@mohammadabuhammad4416]

سعتك جميله

[@mohammadabuhammad4416]

الله عليك يا مستر