• Congratulations to the Class of 2024 on your results!
    Let us know how you went here
    Got a question about your uni preferences? Ask us here

Hertz and radiowaves, photoelectric effect (1 Viewer)

KnifeySpoony

Member
Joined
Nov 28, 2007
Messages
258
Gender
Male
HSC
2009
So i'm writing up my notes,and i don't exactly understand the prac:
"describe Hertz's observation of the effect of a radio wave on a receiver and the photoelectric effect he produced but failed to investigate"
I've gone through my class notes and textbook and uhh, i don't completely understand it, so here i am looking for some help, maybe someone could explain it to me in a more colloquial manner :)
 

hamzie

Member
Joined
Nov 29, 2007
Messages
57
Gender
Male
HSC
2008
- Maxwell predicted accelerating charges would create electromagnetic waves
. He stated these waves (E.M waves) travelled at the speed of light and consisted of mutually
perpendicular and electric fields (Just memorize it)
- The existence of such waves was demonstraed experimentally by Hertz in 1887
. His exp. consisted of a primary coil and a receiver coil
. Induction coil was used to provide a high voltage to the primary coil
. The gap in the primary coil resulted in EM waves just as MAXWELL predicted
. A spark jumped across the gap and was seen in the receiver coil
. Hertz also noticed when UV light was shone on the receiving coil.. the spark would increase
> this was the photoelectric effect however he did not pursue this phenomenon

thats pretty much it
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top