5:17 S-400 Missile Defence system Radars are capable of engaging multiple targets. If your statement is correct (which is not) then S-400 and Defence systems like Iron Dome are worthless.
Sir if someone is asking you any question Any stupid question; dont make them feel stupid, teachers are there to change stupids by giving them knowledge, You are cracking their confidence, you can give them their answers happily and easily, you are there to teach people the things they dont know not there to make fun of them because they dont know something! And for rest of the other thing you are a good teacher!
1:20 A common misconception !! Increase in speed cause stackup in pressure wave and it grows thinner and thinner as we move to sound barrier( about 100~200 nm wide) there is no way a naked human eye can observe this shockwave but this high pressure wave causes distortion in light(which can be seen using schlieren photography) and about that cloud cone its water condensation due to temperature drop in a well humid air with a high saturation of its water holding capacity and these vapour cone formed due to decrease in temperature whereas shockwave causes increase in temperature and that cone is an vapour which can form near wings or winglet( It can be formed in a passenger jet providing right conditions). Not everything you search on google is correct and that cone isn't a shock wave and it forms at totally opposite conditions of a Shockwave. My Mott here is to clear a misconception. For more info. Read about Prandtl-Meyer expansion fan.
5:17 The statement you mentioned is not entirely accurate. When fighter aircraft fly in a group of 5-6, it does not become inherently difficult for radar to recognize whether there is one aircraft or many. Radar systems are designed to detect and track multiple targets simultaneously, and they are capable of distinguishing between individual aircraft within a formation. The logic behind military aircraft flying in formation is similar to the reasons why birds fly in formation-it allows for coordinated movement, identification of any threats, and can save energy (in the case of aircraft, fuel savings).
Even other teachers follow Khan Sir- I do agree with your explanation.. radars can detect a lot of targets and fuel saving and they have to fight .. you need a force to fight
