National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Option D. All of the above.

Ans 2:

Class : Class 6
Answer is D as air it neither absorbs or reflects light,its almost transparent,it transmits the whole of light.

Ans 3:

Class : Class 7
d is the answer but the trainer is showing b as answer air reflects light that is why the sky is blue

Ans 4:

Class : Class 6
D is the ans as air is matter and is very transparent.

Ans 5:

Class : Class 6
And is b

Ans 6:

Class : Class 6
D

Ans 7:

Class : Class 7
ans is d

Ans 8:

Class : Class 7
Answer is d

Ans 9:

Class : Class 6
ans is d sof !!!!!!!!!!!!! ans is d

Ans 10:

Class : Class 8
Ans is D as air is all of the above

Ans 11:

Class : Class 7
ans is d

Ans 12:

Class : Class 6
ans is d

Ans 13:

Class : Class 7

Ans 14:

Class : Class 6
Option D. All of the above.

Ans 15:

Class : Class 6

Ans 16:

Class : Class 6
ans is d because it is transparent which allows light to pass, it doesn't observe light but transmits all light

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

Ans 2:

Class : Class 7
everybody just copy and paste it, can anyone explain in an easier way

Ans 3:

Class : Class 7
answer is b

Ans 4:

Class : Class 10
The common error is to think that pressure at 0.4h above the surface of the reservoir of mercury is 0.4 times the atmospheric pressure. The pressure at p is caused by the weight of mercury above point P. Thus preesure at P is equal to : 0.6x 100000 = 60000 Pa

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 2:

Class : Class 3
The correct answer is D [friction].

Ans 3:

Class : Class 3

Ans 4:

Class : Class 4
obviusly it will be d

Ans 5:

Class : Class 3
Y...I DONT UNDERSTAND SOOOOO....................TELL MEH!!

Ans 6:

Class : Class 6
I too

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
A

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Subject :NSO    Class : Class 1

Ans 1: (Master Answer)

Class : Class 1
No, the answer is D because in the option A the second image is of a full moon and not a new moon.

Ans 2:

Class : Class 2
a

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
kojjk

Ans 2:

Class : Class 5
the question you had given ,in the solution of the question of it is another one,the solution of the real question was its solution so we could not find the solution of this question.

Ans 3:

Class : Class 5
why the question have given like this I don't know. why olimpiadtrainer sometimes do like this.Can anyone tell me the answer.I request to you all.Please help me or else I have tell to my father.I don't want to tell my father.I beg to you please.

Ans 4:

Class : Class 3
i will tell to your dad das ji

Ans 5:

Class : Class 3
you all are mad

Ans 6:

Class : Class 3
blah blah blah every one

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
No, the correct answer is D. When written in decimal, the value of it comes out to be 0.2 and the rest are bigger than it. In fractions, as the denominator gets bigger, the number gets smaller.

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Subject :NSO    Class : Class 7

Which of the following statements are incorrect?
(i) Cellular respiration is a physical process in which food molecules are broken down into carbon dioxide and water.
(ii) Anaerobic respiration involves breakdown of glucose into alcohol and carbon dioxide.
(iii) Breathing rate varies according to oxygen requirement of the body.
(iv) On land, frogs breathe through lungs and in water by gills.
(v) Respiration in plants occurs through stomata and lenticels.

A(i), (ii) and (iv) only
B(i) and (iv) only
C(ii), (iii) and (v) only
D(ii), (iii) and (iv) only


Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 6

A science teacher labelled three glass slides as P, Q and R. She painted slide Q with light blue colour, slide R with black colour and slide P was left as such.
Then she asked students to put the slide on a white paper having (X) mark on it.
Students will be able to see the mark clearly (or partially)

A In slide P as it is translucent
B In slide Q as it is translucent
C In slide R as it is opaque
D In all the slides as paint does not change the nature of glass.


It's written'Students will be able to see the mark clearly (or partially)'. What should I do the question is not even making up it's mind!

Ans 1:

Class : Class 6
why!

Ans 2:

Class : Class 6
Even C is correct. In the workbook solution it’s given that slideR is supposed to be opaque

Ans 3:

Class : Class 6
IT IS AND THE ANSWER IS B

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