National Science Olympiad Forum By SOF Olympiad Trainer - Page 492

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
as only the option (D) will be magnetic and the SOFT IRON will act as a keepers

Ans 3:

Class : Class 8

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
The answer is B

Ans 2:

Class : Class 6
Ans should be A because tuemeric powder is solid and solids are incompressible. Liquids are also incompressible but the some of the liquid has gone above the end of the piston, which is inside the syringe. Gases are compressible, so the piston easily moves.

Ans 3:

Class : Class 6
Well... I think the answer is B

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10
solution?

Ans 2:

Class : Class 6
can I have an explanation please....... plz...plz...plz...

Ans 3:

Class : Class 8
How is it C!?

Ans 4:

Class : Class 7
its C acording to me

Ans 5:

Class : Class 9

Ans 6:

Class : Class 10
c is the answer

Ans 7:

Class : Class 6
c

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9

Ans 2:

Class : Class 8
I too think the correct ans is C rather than A

Ans 3:

Class : Class 6
After checking the Snell's law, I found the answer to be C...But it says the correct answer is A

Ans 4:

Class : Class 9
correct answer is C

Ans 5:

Class : Class 10
answer is C

Ans 6:

Class : Class 10
I too think correct option is C

Ans 7:

Class : Class 8
yes i think that opt C is correct

Ans 8:

Class : Class 8
The answer is C because the ray would refract and be parallel to incident ray. also the emergent ray cant appear behind the incident ray

Ans 9:

Class : Class 6
It is Option C only, as when light travels from denser to rarer medium, it bends away from normal

Ans 10:

Class : Class 8
correct answer is C as the ray would refract if its passing from a rarer to denser medium.

Ans 11:

Class : Class 10
It's A.When light travels from a denser to rarer medium,it bends TOWARDS the normal(Check normal in solution).Hence,answer is A.

Ans 12:

Class : Class 9

Ans 13:

Class : Class 8
Me too... I also think that the correct option will be C

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
C

Ans 2:

Class : Class 4

Ans 3:

Class : Class 2
Sushree Snehasikta Bhera from Mother's Public school, Odishaclass 4Answer is c as cockroach has three stages in its life cycle and also the young one of the cockroach resembles the adult. The housefly also has three stages in its life cycle and also does not resemble its adult.

Ans 4:

Class : Class 4
Aayansh from mundamarai

Ans 5:

Class : Class 4
Shuchi: P is an organism which has three stages in its life cycle. The young one is very similar to its parent.Ritu: Q is an organism which has four stages in its life cycle. The young one is very different from its parent.Now, let’s see which of the following options gives the right identities of Organisms P and Q:

Ans 6:

Class : Class 4

Ans 7:

Class : Class 4
I GOT 40/40 IN THIS QES. PAPER

Ans 8:

Class : Class 4
tg4tg

Ans 9:

Class : Class 4
c

Ans 10:

Class : Class 4

Ans 11:

Class : Class 4
Ans: C

Ans 12:

Class : Class 5

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 6
b

Ans 2:

Class : Class 3
B

Ans 3:

Class : Class 7

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 9
The correct answer is B.

Ans 2:

Class : Class 3
B is the right answer.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 6
B . (2.1cm)

Ans 2:

Class : Class 3

Ans 3:

Class : Class 6
B . (2.1cm)

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
A 30

Ans 2:

Class : Class 7
A 30

Ans 3:

Class : Class 9
The correct answer is C

Ans 4:

Class : Class 5
A

Ans 5:

Class : Class 9
Vighneshwar , Bhavya and Anika can you tell me how the answer is A ??? Why are you telling the wrong answer ???

Ans 6:

Class : Class 8

Ans 7:

Class : Class 4
Answer should be A as 6 x 5 =30

Ans 8:

Class : Class 4

Ans 9:

Class : Class 4
no repetition of same pairs ( like AB and BA )

Ans 10:

Class : Class 6

Ans 11:

Class : Class 8
C 15

Ans 12:

Class : Class 4
the solution is correct as this is not combination this is just simple paring that is converted to handshakes . answer is C

Ans 13:

Class : Class 7
AAAAAAAAAAAAAAAAAAAAAAA = Answer

Ans 14:

Class : Class 5
a

Ans 15:

Class : Class 4
Answer is A

Ans 16:

Class : Class 5
As said in the solution no repeating of same pairs (AB and BA) so 15 is correct.

Ans 17:

Class : Class 7
the correct answer is D

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