National Science Olympiad Forum By SOF Olympiad Trainer - Page 490

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 3
The answer which is given in the SOF application is wrong, because a frog has four life stages in his life stages, the correct answer must be moth because it has only three life stages in his life cycle and the parent and child do not look same,

Ans 2:

Class : Class 8
The correct answer is C

Ans 3:

Class : Class 4

Ans 4:

Class : Class 5

Ans 5:

Class : Class 8

Ans 6:

Class : Class 5
the answer is d as the mosquito does not look like the parent , has 3 stages of life and lays eggs while frog does not look like the adult , has 4 stages of life and lays eggs .

Ans 7:

Class : Class 4
It is option B

Ans 8:

Class : Class 4
Frog has 4 stages any of the answers are not correct

Ans 9:

Class : Class 5

Ans 10:

Class : Class 4
correct answer is D

Ans 11:

Class : Class 9

Ans 12:

Class : Class 9
the answer is d

Ans 13:

Class : Class 5
THE ANSWER IS D AS FROG HAS 4 STAGES IN IT'S LIFE CYCLE ,BUT DOES NOT LOOK LIKE IT'S PARENT.WHILE,MOSQUITO HAS THREE SYTAGES IN IT'S LIFE CYCLE AND DOES NOT LOOK LIKE IT'S PARENT.I MADE THE SAME MISTAKE IN THE PREVIOUS TEST

Ans 14:

Class : Class 5
but frog dosnt have just 3 life stages it has 4 so its not the answer

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Answer is C

Ans 2:

Class : Class 7
super easy answer. it is 'A'

Ans 3:

Class : Class 5
ANS A

Ans 4:

Class : Class 5
ans is B

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
this is not a question

Ans 3:

Class : Class 5
The question is in the solution please check

Ans 4:

Class : Class 4
where is the questionnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Ans 5:

Class : Class 9
What is the question?????????????????????????????????

Ans 6:

Class : Class 6

Ans 7:

Class : Class 7
There is no question. What are we supposed to answer. It is incomplete

Ans 8:

Class : Class 6
see the solution the question is how many kharif crops are there. there are 6.

Ans 9:

Class : Class 6
there is no proper question?

Ans 10:

Class : Class 7
they did not give the question .

Ans 11:

Class : Class 6

Ans 12:

Class : Class 7
No question?????????????????????????????

Ans 13:

Class : Class 5
where is the question???????????????????????????

Ans 14:

Class : Class 6

Ans 15:

Class : Class 10
question is incomplete

Ans 16:

Class : Class 5
WHERE IS THE QUESTION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!??????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!???????????????????????????

Ans 17:

Class : Class 5
There is no question!

Ans 18:

Class : Class 4

Ans 19:

Class : Class 3
no question!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 20:

Class : Class 5
The question is incomplete

Ans 21:

Class : Class 9
The question is there in the solution please check

Ans 22:

Class : Class 6
Where is the question? Isn't it very vague?

Ans 23:

Class : Class 6

Ans 24:

Class : Class 5

Ans 25:

Class : Class 6
Where is the question!?

Ans 26:

Class : Class 5
where is the question ??????????????????

Ans 27:

Class : Class 9
No relevant question

Ans 28:

Class : Class 5
wrong question, incompleted question!!!!!!!!!!!!!????

Ans 29:

Class : Class 5
where the h

Ans 30:

Class : Class 6
If they don't give the complete question, we all will get it wrongSOF please look into this matter

Ans 31:

Class : Class 4
There is no question and when I reported that error, it just came as "invalid"

Ans 32:

Class : Class 9
question is incomplete

Ans 33:

Class : Class 5
what.

Ans 34:

Class : Class 2

Ans 35:

Class : Class 7
question????????????????

Ans 36:

Class : Class 6
no question.report error please

Ans 37:

Class : Class 5
report error

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6
Thank You Mr.Rahul

Ans 3:

Class : Class 8
Please explain how the deviation has happened at 180 degrees

Ans 4:

Class : Class 8
explain please....

Ans 5:

Class : Class 9
but due to water refraction will also take place

Ans 6:

Class : Class 10
But wont the refraction of light in water play a role?

Ans 7:

Class : Class 8
Why does the deviation happen to be 180 degrees

Ans 8:

Class : Class 8
Key Idea: Phenomenon of reflection is independent of medium. The deviation produced by combination of two plane mirrors is δ=2π−2θ =2π−2×π2 (θ=90o) ⇒ δ=π=180o. Hence, total deviation in incident ray is180o

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 4
D

Ans 2:

Class : Class 6
Answer can be A

Ans 3:

Class : Class 6
D

Ans 4:

Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
D is definitely the correct answer

Ans 2:

Class : Class 10

Ans 3:

Class : Class 9

Ans 4:

Class : Class 7
according to me D is correct

Ans 5:

Class : Class 10
D is the correct answer.

Ans 6:

Class : Class 6

Ans 7:

Class : Class 8

Ans 8:

Class : Class 6
the answer is D

Ans 9:

Class : Class 6
According to me D is the correct answer

Ans 10:

Class : Class 9
When a battery is constructed such that all the positive terminal of the cells are connected to a same point and all the negative terminals of the cells are connected to another point then the grouping of cells in this manner is called the Parallel Grouping of cells. The two end terminals of the construct where all the positive and negative terminals of the cells are connected act as the corresponding terminal of the battery.

Ans 11:

Class : Class 6

Ans 12:

Class : Class 8
pls explain how the answer is B

Ans 13:

Class : Class 7

Ans 14:

Class : Class 7

Ans 15:

Class : Class 6
Answer B is the correct answer as the question specified for the arrangement which will allow the bulb to stay lighted for the longest possible time. Option B is connected as One cell as per the circuit (all connections are in parallel), While Option D is in Series (in case of failure of one cell, the circuit will not work as the current will not pass through the cell)

Ans 16:

Class : Class 6
pls explain how the answer is bBTW: your answer is correct

Ans 17:

Class : Class 7
How many times will olympiad confuse us its D

Ans 18:

Class : Class 6
According to me D is the correct answer as a wire should be connected from a terminal of a battery to the - terminal of the battery for longer stay of electric circuit, and this rule is satisfied by the circuit shown in option D.

Ans 19:

Class : Class 6

Ans 20:

Class : Class 3
D is the correct answer

Ans 21:

Class : Class 6
pls explain how the answer is B

Ans 22:

Class : Class 6
D

Ans 23:

Class : Class 7

Ans 24:

Class : Class 7

Ans 25:

Class : Class 9
Answer is B

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 1
there is an error. the answer is C

Ans 2:

Class : Class 6
Both statements are true

Ans 3:

Class : Class 3
Answer is C. As you can't weave fibres.read the question properly!!!!!!!!!!!!!!!

Ans 4:

Class : Class 6
Very good and tricky question

Ans 5:

Class : Class 7
There seems to be an error in this. We feel that it is B

Ans 6:

Class : Class 10

Ans 7:

Class : Class 7

Ans 8:

Class : Class 8

Ans 9:

Class : Class 8

Ans 10:

Class : Class 6
the correct answer is c as it is given weaving fibres not weaving yarn.read the question carefully.

Ans 11:

Class : Class 5
its an error as weaving is done as sam eas decribed in statement 2 i think answer should be ...............BBBBB......................

Ans 12:

Class : Class 4
It is C!!!!! Be careful!!!!!!!!!

Ans 13:

Class : Class 7
the answer is C because YARNS are woven not FIBRES

Ans 14:

Class : Class 7
answer is B

Ans 15:

Class : Class 6
Answer is C. ttraj's point is true.

Ans 16:

Class : Class 3
It is C only!!!

Ans 17:

Class : Class 7
I agree with A Ramakrishna's point

Ans 18:

Class : Class 8
I think the is option B

Ans 19:

Class : Class 7
The answer would be C. If you read the question carefully, it says, "Weaving is done by interlacing two sets of FIBRES at right angles." There are two things wrong with this: 1) They need not be interlaced at right angles. 2) The question clearly says 'fibres', not 'yarns' as it should be. Therefore, the answer is C.

Ans 20:

Class : Class 7
Ans = C

Ans 21:

Class : Class 8

Ans 22:

Class : Class 8
The answer is B

Ans 23:

Class : Class 7
thanks for the answer

Ans 24:

Class : Class 4
The answer is B

Ans 25:

Class : Class 8
it is cccccccccccccccccccccc!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
p

Ans 2:

Class : Class 7

Ans 3:

Class : Class 8
ans is c

Ans 4:

Class : Class 7
Bubble pack is a good insulator than a cotton wool.

Ans 5:

Class : Class 8
ns is C

Ans 6:

Class : Class 7
i clicked the correct option but it showed wrong.. this system is completely stupid.. 0 stars out of 5

Ans 7:

Class : Class 8
q

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
c

Ans 2:

Class : Class 9

Ans 3:

Class : Class 10
why not statement V is correct ?SOF pls explain

Ans 4:

Class : Class 8

Ans 5:

Class : Class 8
it should be C ,since C is the ovule

Ans 6:

Class : Class 9
Yes it is CQ is female gamete and it does transform into endosperm

Ans 7:

Class : Class 8
C is correct, the statement (i) is vague

Ans 8:

Class : Class 9

Ans 9:

Class : Class 7

Ans 10:

Class : Class 9
b is the answer

Ans 11:

Class : Class 9

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