National Science Olympiad Forum By SOF Olympiad Trainer - Page 555

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
idiots it's C!!!

Ans 2:

Class : Class 4
how can it be c ??????????????????????

Ans 3:

Class : Class 5

Ans 4:

Class : Class 6
C . (1and 2 only)

Ans 5:

Class : Class 4
how C?

Ans 6:

Class : Class 4
c ans

Ans 7:

Class : Class 5
IT"s d

Ans 8:

Class : Class 4

Ans 9:

Class : Class 3
the correct answer will be c as if the water will be colder in x so it will boil more late

Ans 10:

Class : Class 9

Ans 11:

Class : Class 6
C . (1and 2 only)

Ans 12:

Class : Class 6
C . (1and 2 only)

Ans 13:

Class : Class 3
D

Ans 14:

Class : Class 4
Iamnot able to see the picture so i will not able to answer

Ans 15:

Class : Class 9

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 1
Any ways,can anyone explain??

Ans 2:

Class : Class 1
Hello Snow White!haha

Ans 3:

Class : Class 9
Biju Pappachan ... Whom do you address as Snow White ?

Ans 4:

Class : Class 7
Answer is B . If we imagine that the planet X is mercuryAnd planet Y is Mars who will take more time it will be Mercury because it is near to the sun and will revoluteFaster than Mars

Ans 5:

Class : Class 9

Ans 6:

Class : Class 7
B is the answer to this question

Ans 7:

Class : Class 1
Take no offence,Snow White.

Ans 8:

Class : Class 9
B because it means ( here ) that orbit will be bigger as a planet is away from sun and, longer distance means long revolution

Ans 9:

Class : Class 7
b

Ans 10:

Class : Class 7
Sorry sorry the Mars will take more time who ever isReading my post

Ans 11:

Class : Class 6
B

Ans 12:

Class : Class 9
Who is this Snow White, man!

Ans 13:

Class : Class 10

Ans 14:

Class : Class 6
Answer is B.

Ans 15:

Class : Class 4

Ans 16:

Class : Class 8
answer is B

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4

Ans 3:

Class : Class 2
NA

Ans 4:

Class : Class 2
😓how.????

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Subject :NSO    Class : Class 3

Ans 1:

Class :
D

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 5
You need to specify whether it is a waxing or waning crescent.

Ans 3:

Class : Class 4
you need to specify if waning or waxing crescent

Ans 4:

Class : Class 4
i thought it was a

Ans 5:

Class : Class 4
You have to specify if waxing or waning crescent

Ans 6:

Class : Class 8

Ans 7:

Class : Class 4

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
X will light up... I think it's incorrect....

Ans 2:

Class : Class 8
The answer is B

Ans 3:

Class : Class 8
The answer key says that X will not light up,but why?

Ans 4:

Class : Class 10
b

Ans 5:

Class : Class 9
Yess,my answer was B also

Ans 6:

Class : Class 7
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb is correct as current will flow though X but I do feel that current will prefer less resistant path so D can also be correct

Ans 7:

Class : Class 6
The answer should be B as it will be closed circuit

Ans 8:

Class : Class 8
It must be B.The current finds a more direct path to Y, Making it brighter.But the current still reaches X because there is still a path. SOF Says otherwise.

Ans 9:

Class : Class 8
logically it should be B but sof says otherwise. why ????

Ans 10:

Class : Class 7
I too am confused as current will also flow through both the bulbs when circuit is closed. It will pass through the switch first and hence lighting up bulb Y.

Ans 11:

Class : Class 9

Ans 12:

Class : Class 10

Ans 13:

Class : Class 9
yes i too did B

Ans 14:

Class : Class 5
answer should be B

Ans 15:

Class : Class 8
Please explain it. I am also confused about the answer. I myself did B.

Ans 16:

Class : Class 7
answer should be b because X will also lit up

Ans 17:

Class : Class 8

Ans 18:

Class : Class 3
Option D is correct because current prefers the path that offers less resistance. The bulb provides resistance whereas the switch when closed does not. Hence correct answer is D

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 10
Sorry all, I had not read the question well.😞😞

Ans 2:

Class : Class 10

Ans 3:

Class : Class 5
no chart no answer

Ans 4:

Class : Class 7
It is a very serious thing for us that we are getting wrong answers from SOF . It should be D only !

Ans 5:

Class : Class 4
ans is D so easy

Ans 6:

Class : Class 9
The answer is c

Ans 7:

Class : Class 7

Ans 8:

Class : Class 7
I was a bit confused between C and D

Ans 9:

Class : Class 7

Ans 10:

Class : Class 9

Ans 11:

Class : Class 3
D

Ans 12:

Class : Class 6
c

Ans 13:

Class : Class 7

Ans 14:

Class : Class 6
The answer is d

Ans 15:

Class : Class 4
d

Ans 16:

Class : Class 4
Low High Many Many

Ans 17:

Class : Class 7
Sorry , my brother changed the C into D . It should be C only !

Ans 18:

Class : Class 6
Veer Sehrawat, how c, the question says which town is located near an unpolluted river not a polluted river.

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