National Science Olympiad Forum By SOF Olympiad Trainer - Page 496

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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 8

Ans 2:

Class : Class 4

Ans 3:

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

Ans 4:

Class : Class 4
You need to specify whether it is a waxing or waning crescent.

Ans 5:

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

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Subject :NSO    Class : Class 8

Ans 1:

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 2:

Class : Class 9

Ans 3:

Class : Class 9
Yess,my answer was B also

Ans 4:

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

Ans 5:

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 6:

Class : Class 9
yes i too did B

Ans 7:

Class : Class 8
The answer is B

Ans 8:

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 9:

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

Ans 10:

Class : Class 10

Ans 11:

Class : Class 4
answer should be B

Ans 12:

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

Ans 13:

Class : Class 8

Ans 14:

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 15:

Class : Class 10
b

Ans 16:

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

Ans 17:

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

Ans 18:

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

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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 9
The answer is c

Ans 3:

Class : Class 5
no chart no answer

Ans 4:

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

Ans 5:

Class : Class 5
c

Ans 6:

Class : Class 3
D

Ans 7:

Class : Class 9

Ans 8:

Class : Class 7

Ans 9:

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

Ans 10:

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

Ans 11:

Class : Class 4
ans is D so easy

Ans 12:

Class : Class 4
d

Ans 13:

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 14:

Class : Class 7

Ans 15:

Class : Class 7

Ans 16:

Class : Class 6
The answer is d

Ans 17:

Class : Class 4
Low High Many Many

Ans 18:

Class : Class 10

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7

Ans 2:

Class : Class 9

Ans 3:

Class : Class 5
NA

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
😓😓copying

Ans 2:

Class : Class 8

Ans 3:

Class : Class 7
Mocking or copying.

Ans 4:

Class : Class 5
What is mimicry?

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Subject :NSO    Class : Class 4

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