Multiple Choice (Compiled Answers) (1 Viewer)

[smeyo]

damn i thought that about 5 but i left it was unsure, i wish someone pointed that out to me

 

[jake_nap]

Takuya i admire your confidence, hahaha.... i agree on everysingle one excpt 14, i have no idea what i put down...i was debating it for a long time....

Did anyone else have alot of time to go back and look at stuff??

 

[Constip8edSkunk]

5 is screwed imo, its which ever way u intepret the q...

 

[Bannanafish]

14 IS b, i had no extra time, wrote about twice as much as the lines for most questiosn

 

[Constip8edSkunk]

just to check something: if theres no UV light, wouldnt the maximum spark length decrease, because electrons are less likely to jump across?

 

[Takuya]

Originally posted by ND
There's no way 14 is b. If UV rays were blocked, then radio waves definately would have been (higher freq = greater penetration).

Quoting p213 of Jacaranda:
"Glass used as a shield between the transmitting and receiving loops blocked the UV."

 

[Bannanafish]

what is spark length? isn't taht determined by the gap?

 

[ND]

Originally posted by Bannanafish
nup, absorption of waves is due to the energy being the same as the energy transistion of electron energy levels

Ah ok.

 

[Constip8edSkunk]

exactly, under UV light the sparking would jump aceoss a bigger gap than without UV light, am i right?

 

[ND]

Originally posted by Takuya
Quoting p213 of Jacaranda:
"Glass used as a shield between the transmitting and receiving loops blocked the UV."

Owned.

 

[Bannanafish]

er... the gap is fixed by the distance between the spheres on the ring

 

[ND]

Originally posted by Constip8edSkunk
exactly, under UV light the sparking would jump aceoss a bigger gap than without UV light, am i right?

Yep.

 

[Leon585]

oi 14 is b, cos its the only thing to do with the photoeletric effect, dont worry almost all the state got it wrong

 

[Takuya]

Originally posted by ND
Owned.

hehehe I didn't even read Jacaranda and I knew that for some reason.

 

[bob_the_catdog]

b
a
b
a
d
b
d
c
c
a
b
d
d
d
a

i'm fairly confident with all of my answers

 

[juber]

Ok, based on these results that people have put up, there are only three query questions:

5, 9 and 14

Can anyone get an official word (i.e. ask teacher or someone) to confirm these questions?)

I am pretty sure 5 is D and I am pretty sure that 9 cannot be B or D howevor could be C or A (someone explained to me why it could be A but I dont fully agree). 14 I dont fully know, but I Put D but dont know why, just looked better than the others.

 

[Constip8edSkunk]

yes but if you have 2 rings with different lengths, or even 1 ring with a large gap, then u can show that the spark length decrease...

im saying this because although b is rigth, i dun c how that directly relates to the photoelectric effect while i thing d is directly related 2 the photoelectric effect

i think....

 

[Bannanafish]

5 is b, go read the q again
its from the astronaought perspective of the clock on earth so it must be <10 years

9 is c, lsin60 = the perpendicular component of the wire

14 is b, go check your book

 

[Constip8edSkunk]

Originally posted by Bannanafish
14 is b, go check your book

I know B is a right STATEMENT so is D... but which 1 is applicable to the question?

 

[Bannanafish]

but hertz didn't use 2 rings