Please help in this one using the Projectile Vector Method.

@VasuBro @LaveshGupta @Deadpool

What is expression for time?

(v_o) /(gsin \theta)

If this is correct

Then

Just write

Initial velocity vector in terms of i and j

Then

At any time time

Its velocity vector at which it must be perpendicular to inital velcoity vector is

v_o sin \theta i - (gt-v_osin\theta) j

Take their dot product =0 and u r set to go…

Ye physics sirjee ne uska inclined plane pe bhi iska variation kiya tha using vectors

Iss diagram se v directly

{sin \theta = u/gt} likh sakte

Bro intersection point should be (3,0,0)…plane at x=3 is a plane parallel to yz plane passing through x=3.

Yes it’s a point. I’m confused with the language. What do they mean by surface charge density?

I think it probably has something to do with conductors…they are probably considering a thin metal plate at x=3 and want to know the charge induced ig.

Just a imagine a line charge (lambda=8nC/m) and 3m perpendiclusrly away from it thre is a point they have asked what is the surface charge density (q/A) ?

Now draw a cylinder apply gaus law and equate electric field (if you don’t remember result

2k\lambda/r = \sigma/ \epsilon (for a thin conductor with electric field in one direction )where \sigma is what you need to find

Soluchan tag de dena

Thanks a lot bro

Second Wale me Ditto Waise hi rahega Jaise Rays Ki presence me hota means YDSE me Bs jo screen pe Hyperbolic shape Ki lines aati h wo Smoke se cover ho jayengi …

Delocalised Isliye rahega Kyunki frindge Width Change Ho jati h Different parameters pe unki position bhi Change ho skti h…

exactly ab smoke se cover ho jayengi toh how evidence of interference everywhere b/w Barrier and Screen. shyd mujhe B statement smjh hi nhi aya. due to smoke, both maxima minima would be delocalised as u said…

but what does {Evidence \ of \ Intereference \ everywhere } mean

@VictoryGod ye point clr kr dena plz

Iska koi easirer way hain ?@LaveshGupta @VVaibhav @VictoryGod @VasuBro(its not basic btw,anyways)

but toh exam me isme irodov ki experience se a mark karke aage bad jaunga partial to he na