National Science Olympiad Forum By SOF Olympiad Trainer - Page 532

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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 need to specify if waning or waxing crescent

Ans 2:

Class : Class 8

Ans 3:

Class : Class 4

Ans 4:

Class : Class 4
You have to specify if waxing or waning 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 7
answer should be b because X will also lit up

Ans 2:

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 3:

Class : Class 10
b

Ans 4:

Class : Class 8
The answer is B

Ans 5:

Class : Class 10

Ans 6:

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

Ans 7:

Class : Class 5
answer should be B

Ans 8:

Class : Class 9
Yess,my answer was B also

Ans 9:

Class : Class 9
yes i too did B

Ans 10:

Class : Class 9

Ans 11:

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

Ans 12:

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

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 8

Ans 16:

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 17:

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 18:

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

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7

Ans 3:

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 4:

Class : Class 9

Ans 5:

Class : Class 3
D

Ans 6:

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

Ans 7:

Class : Class 7

Ans 8:

Class : Class 5
no chart no answer

Ans 9:

Class : Class 4
Low High Many Many

Ans 10:

Class : Class 4
ans is D so easy

Ans 11:

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

Ans 12:

Class : Class 6
The answer is d

Ans 13:

Class : Class 4
d

Ans 14:

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

Ans 15:

Class : Class 9
The answer is c

Ans 16:

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

Ans 17:

Class : Class 6
c

Ans 18:

Class : Class 10

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 2
NA

Ans 2:

Class : Class 7

Ans 3:

Class : Class 9

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
Mocking or copying.

Ans 2:

Class : Class 2
What is mimicry?

Ans 3:

Class : Class 2
😓😓copying

Ans 4:

Class : Class 8

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 8

Ans 3:

Class : Class 10
The correct and is D as the magnetic field moves from North to south

Ans 4:

Class : Class 7
The answer D is correct. Magnetic field moves from North to South, and if you follow the direction of the compasses, you will see that this theory is true.

Ans 5:

Class : Class 9

Ans 6:

Class : Class 9

Ans 7:

Class : Class 10

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