National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 8

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Class : Class 8

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
a glass plate can be broken easily

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5
it can be B

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Bristlecone pine found in Sumatra

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Pygmy shrew

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Three different types of materials X, Y and Z were used in the experiment shown below here. In both circuits, the bulbs lighted up.

Another different circuit was set up and three of the materials were placed at three different positions, Q1, Q2 and Q3.

Based on the above circuits, which one of the following is wrong?
Positions in the circuit--- Light bulbs

Q1 Q2 Q3 B1 B2 B3
A X Y Z No Yes No
B Y Z X Yes Yes No
C Z X Y Yes No Yes
D X Z Y No No No


not understanding

Ans 1:

Class : Class 6
The answer is C as if assume x as a insulator , all other condition satisfy

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6
ANSWER IS B

Ans 4:

Class : Class 3
And is A since X is insulator it doesn't allow electricityTo pass through so nothing glows

Ans 5:

Class : Class 6
Answer supposed to be b

Ans 6:

Class : Class 7
plz answer

Ans 7:

Class : Class 5
someone please explainnnnn

Ans 8:

Class : Class 7
Can someone explain it ,please??

Ans 9:

Class : Class 6

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
but the question says to choose incorrect answer

Ans 2:

Class : Class 7
Option D is the right answer. The Solution also tells the same then how can they say our answer is wrong?? Try putting this question in the "ERROR" box

Ans 3:

Class : Class 7
Q also can be cockroach. Thus in my OPINION C can also be the answer

Ans 4:

Class : Class 7
Wrong answer provided . Even the solution says answer d

Ans 5:

Class : Class 7
eplanation given is correct but answer is option d

Ans 6:

Class : Class 8
Its Option D

Ans 7:

Class : Class 7
Forget about the Option C. Option D is the right answer.

Ans 8:

Class : Class 7
The answer has to be D because they have asked for the incorrect option

Ans 9:

Class : Class 7
Option D

Ans 10:

Class : Class 7
Answer should be D. Solution provided by them says so too.

Ans 11:

Class : Class 7
answer should be A. They have asked for the INCORRECT OPTION and A is incorrect. Earthworm uses skin not trachea. The answer is A. It also appears in my solution

Ans 12:

Class : Class 7
Answer is C

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