National Science Olympiad Forum By SOF Olympiad Trainer - Page 497

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
c ans

Ans 2:

Class : Class 4
how C?

Ans 3:

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

Ans 4:

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

Ans 5:

Class : Class 3
D

Ans 6:

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 7:

Class : Class 4

Ans 8:

Class : Class 9

Ans 9:

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

Ans 10:

Class : Class 8

Ans 11:

Class : Class 5

Ans 12:

Class : Class 5
IT"s d

Ans 13:

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

Ans 14:

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

Ans 15:

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

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 1
Take no offence,Snow White.

Ans 3:

Class : Class 1
Hello Snow White!haha

Ans 4:

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

Ans 5:

Class : Class 7
b

Ans 6:

Class : Class 10

Ans 7:

Class : Class 8
answer is B

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 4

Ans 10:

Class : Class 7
B is the answer to this question

Ans 11:

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

Ans 12:

Class : Class 6
B

Ans 13:

Class : Class 6
Answer is B.

Ans 14:

Class : Class 9

Ans 15:

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 16:

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

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 5
😓how.????

Ans 3:

Class : Class 3

Ans 4:

Class : Class 5
NA

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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
You have to specify if waxing or waning crescent

Ans 2:

Class : Class 4

Ans 3:

Class : Class 8

Ans 4:

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

Ans 5:

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

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
yes i too did B

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9

Ans 4:

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 5:

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

Ans 6:

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

Ans 7:

Class : Class 4
answer should be B

Ans 8:

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

Ans 9:

Class : Class 10
b

Ans 10:

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

Ans 11:

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

Ans 12:

Class : Class 8
The answer is B

Ans 13:

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

Ans 14:

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 15:

Class : Class 10

Ans 16:

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

Ans 17:

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 18:

Class : Class 9
Yess,my answer was B also

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Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

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 3:

Class : Class 5
no chart no answer

Ans 4:

Class : Class 4
d

Ans 5:

Class : Class 4
ans is D so easy

Ans 6:

Class : Class 9
The answer is c

Ans 7:

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

Ans 8:

Class : Class 7

Ans 9:

Class : Class 5
c

Ans 10:

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

Ans 11:

Class : Class 7

Ans 12:

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

Ans 13:

Class : Class 7

Ans 14:

Class : Class 3
D

Ans 15:

Class : Class 9

Ans 16:

Class : Class 4
Low High Many Many

Ans 17:

Class : Class 6
The answer is d

Ans 18:

Class : Class 10

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