Multiple Choice (Compiled Answers) (1 Viewer)

[failingTheHsc]

multiple choice

McLake:

Here is a table of results generated by the reponses in the other thread.

Partial answers list DO NOT show up in this table:

http://www.cse.unsw.edu.au/~mrla036/Physics.htm

EDIT: LAST UPDATED 1st Nov


heres wat i put

1. b
2. a
3. b
4. b
5. d
6. b
7. d
8. c
9. c
10. a
11. b
12. d
13. d
14. d???
15. a

let me know any agreements / disagreements

wat did people for that circle, fixed radius electron at the speed of light question. ive never seen that b4

 

[yumi]

4 a

 

[Ragerunner]

Question 8 is (B)

Remember they want it stepped up. from 240 to 6000

Question 14 is (D) You are right. My teacher said so

 

[Inhuman]

9. d
14. d
15. ??????
What did they mean by polarirty of M to N?
I got the magnetic field but had no idea about the polarity so i said B

 

[failingTheHsc]

Originally posted by Ragerunner
Question 8 is (B)

Remember they want it stepped up. from 240 to 6000

yeh i thought this but then i read the question again and it says 'the ratio of secondary to primary.

stupid question aye!!!

 

[McDaddy]

1 - a
4 - a
10 - b
14 - c (had no idea about this one either - just a guess)

Here's the ones I had different.

 

[clever angel]

read the question properly... even though it is stepped up the question is asking the ratio of secondary to primary n not primary to secondary....

 

[Constip8edSkunk]

i got

1.B
2.A
3.B
4.A
5.D*
6.B
7.D
8.C
9.C
10.A
11.B
12.D
13.D
14.D
15.A

the only thing im not sure about is Q5, cuz i thought that was a screwed up q that requires general relativity... thought might have been B, 6.0 but didnt wanna risk it...

 

[ND]

Damn i put A for 14, i really wasn't sure of it... Yeh i put D for 5, but the question involves acceleration, which isn't dealt with in special relativity, so i dunno.

 

[Belle]

I got

1. b
2. a
3. b
4. b
5. d
6. c (i think this one is wrong )
7. c (and this one too)
8. c
9. c
10. a
11. b
12. d
13. d
14. d
15. a

 

[smeyo]

1. b
2. a
3. b
4. a
5. d
6. b
7. d
8. c
9. c
10. b (Unsure)
11. b
12. d
13. b (unsure)
14. d (unsure)
15. a

ohwell

 

[dnt stop runnin]

i think question 9 is a trick question........i dnt think ur supposed to do the sin60........but the sin30.....coz if u look at it, that isnt the angle..........not 100% sure.......but i put (b) as the answer

 

[Under-stated]

Originally posted by failingTheHsc
yeh i thought this but then i read the question again and it says 'the ratio of secondary to primary.

stupid question aye!!!

Actually isnt it C? because the number of turn on the secondary must be greater than primary?

 

[ND]

No it's sin60. Think about what happens when it would be perpendicular (i.e. sin90), it would be a max.

 

[Takuya]

Answers are:
1.b
2.a
3.b
4.a
5.d
6.b
7.d
8.c
9.c
10.a
11.b
12.d
13.d
14.b
15.a

 

[Macccca]

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

 

[ND]

Originally posted by Takuya
Answers are:

14.b

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

 

[Bannanafish]

1 b
2 a
3 b
4 a
5 b
6 b
7 d
8 c
9 c
10 a
11 b
12 d
13 d
14 b
15 a

i'm pretty sure this is right,

5 is B not d, i put d, but my freind pointed out it is fromt he perspective of the traveller hence must be <10years

 

[Bannanafish]

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).

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

 

[Constip8edSkunk]

actually i read in 1 of the books that Hertz put glass between them to block UV light and quartz between them to let UV light through.... and note the difference in sparking...

i thought D was right cuz it related directly to the photoelectric effect, C was true but didnt relate to photo electric effect, the other 2 choices were just wrong