@Baruah_A
IiTeachChem
•Created by @Baruah_A on 5/24/2025 in #💭│doubts
Photoelectric effect
Why is it said that photocurrent doesn't depend on frequency of incident photon in photoelectric effect. Photocurrent should depend on frequency because, more the frequency, more is the kinetic energy of the emitted electron, and hence the electron will reach the collector plate from the emission plate much faster, which ultimately increases current by reducing the time taken to travel "at zero potential"(or can it be at any potential, i don't think so, right?!)?? Plz clarify and explain in depth.
31 replies
IiTeachChem
•Created by @Baruah_A on 5/22/2025 in #💭│doubts
Set theory
A group of "40" students appeared in an examination of "3" subjects - Mathematics,Physics and Chemistry.It was found that all students passed in atleast one of the subjects,"20" students passed in Mathematics,"25" students passed in Physics,"16" students passed in Chemistry,atmost "11" students passed in both Mathematics and Physics,atmost "15" students passed in both Physics and Chemistry, atmost "15" students passed in both Mathematics and Chemistry.The maximum number of students passed in all the three subjects is_??
Hey! Can anyone please explain me the logic behind solving the question, coz there are a couple of videos on youtube on this, but I couldn't understand from any them so to speak😞
15 replies
IiTeachChem
•Created by @Baruah_A on 5/14/2025 in #💭│doubts
Normality (SBC) doubt
Hello sir, why do we need the concept of gram equivalent mass in chemistry? I simply don't understand this, mole concept was working fine, then why this equivalent mass?? Ik that using equivalent mass doesn't require balancing of chemical equations and all of that stuff, but that's not enough for convincing me to understand its importance? @iTeachChem
17 replies