goIIT: IIT JEE AIEEE CET WBJEE VITJEE BITSAT IIIT AICET Engineering Entrance Experts, Student Discussion Community, IIT JEE Preparation Online

i don't know

give reasons for ur ans.

athe velocity of e is constsnt

an electron is moving twards right near a horizontally lying coil . what is the direction of induced magnetic field

an electron is moving twards right near a horizontally lying coil . what is the direction

but tell me if all the passengers go to one side .due to this mass will be redistributed

thanks for that

good work

relation between photoelectric current and frequency

both d1 and d2 will increase and distance remains the same

max. area upto which shadow will be formed= 165 sq.meter
u can calculate radius check it

when the plate which is ejecting electrons is kept at a higher potential in this case electrons will face a opposing force ,so they must have atleast KE equal to "eV" where V is the pot. diff. between the plates.When the KE is exactly equal to eV then elec REACH THE OTHER PLATE WITH ZERO VELOCITY,if KE is greater than this they have some velocity at the other plate .If iats less than this they dont resch the other plate so there is no current.
please comment on the lettrs in bold

how photoelectric current depends on K.E? give mathematical proof

i m weak in wave optics .what should i do?

be quick

please read the question carefully . i have the final answer but want its proof
answer is photoelectric current is inversly proportional to frequency
provided intensity is same

how photoelectric current depends on K.E? give mathematical proof