National Science Olympiad Forum By SOF Olympiad Trainer - Page 514

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7

Ans 4:

Class : Class 7

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5

Ans 2:

Class : Class 3

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
Arrows are marked wrongly...I dont think these mistakes will ever get rectified considering that people have been writing in this forum, for the past two years, for this question. please look into this sof🙂

Ans 2:

Class : Class 8
NA? what is the explanation of the answer

Ans 3:

Class : Class 9
The correct answer will be(a)

Ans 4:

Class : Class 10
NA means 'No Answer'.But the guidelines clearly state 'Mark all questions.'How is this fair?

Ans 5:

Class : Class 9
NA meant no answer is correct and we had to leave this one empty

Ans 6:

Class : Class 9
I understood that when I looked at the question itselfThe arrows are wrongly labelled

Ans 7:

Class : Class 9
None of the given options are correct...

Ans 8:

Class : Class 9
"NA"?.please explain the answer

Ans 9:

Class : Class 5
NA means no answer but what we had to do with it

Ans 10:

Class : Class 6

Ans 11:

Class : Class 9
What 'NA' ? The question itself is incorrect

Ans 12:

Class : Class 8
Exactly.What does NA mean ??

Ans 13:

Class : Class 9

Ans 14:

Class : Class 8

Ans 15:

Class : Class 4

Ans 16:

Class : Class 7
if there is no answer,then why was it considered wrong?it is not fair.

Ans 17:

Class : Class 8

Ans 18:

Class : Class 9
why no reply...

Ans 19:

Class : Class 9

Ans 20:

Class : Class 9
EXPLAIN THIS PLEASEQuestion is incorrect but even after 30 (31) posts and queries no corrections...

Ans 21:

Class : Class 8
What do you mean by 'NA'?

Ans 22:

Class : Class 8
Yes , NA means 'no answer' So , since there is no such option , anything we pick would be incorrect.

Ans 23:

Class : Class 10

Ans 24:

Class : Class 10

Ans 25:

Class : Class 9
Please explain the answer

Ans 26:

Class : Class 7
what does NA mean?

Ans 27:

Class : Class 8
Woah how are the marks out of 60 then. People have already attempted this paper in the given year. This means an error in the paper was there that wasn't rectified...

Ans 28:

Class : Class 9
What the heck is going on.

Ans 29:

Class : Class 8
Please give the answer to this Question.

Ans 30:

Class : Class 8
PLEASE GIVE THE ANSWER ALONG WITH EXPLANTION

Ans 31:

Class : Class 7

Ans 32:

Class : Class 9
Please explain what NA is... I don't understand

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
please explain this question.

Ans 2:

Class : Class 8
Is the question wrong...? the answer should be 33.0 m as speed=2d/t

Ans 3:

Class : Class 9
please explain this question

Ans 4:

Class : Class 9

Ans 5:

Class : Class 8
Time taken to utter single syllable=1/5th of a sSpeed of sound in air=330m s^-1 or 330m/sso distance to reflecting surface=1/5 * 330 as that will give the distance=66.0mSo, distance to reflecting surface is 66.0m

Ans 6:

Class : Class 8
Can someone please explain this question?

Ans 7:

Class : Class 7
answer??????????????????????????????????????????????????????

Ans 8:

Class : Class 9

Ans 9:

Class : Class 8
Yes I think it is 33 also because it says it is an echo

Ans 10:

Class : Class 8
Yes, it should be 33m as distance for an echo = s x t/2

Ans 11:

Class : Class 8
please explain this question.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5

Ans 2:

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

Ans 3:

Class : Class 9

Ans 4:

Class : Class 4

Ans 5:

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 6:

Class : Class 9
the answer is d

Ans 7:

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 8:

Class : Class 4
It is option B

Ans 9:

Class : Class 9

Ans 10:

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 11:

Class : Class 5

Ans 12:

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

Ans 13:

Class : Class 4
correct answer is D

Ans 14:

Class : Class 8
The correct answer is C

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
ans is B

Ans 2:

Class : Class 5
ANS A

Ans 3:

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

Ans 4:

Class : Class 5
Answer is C

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
report error

Ans 2:

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

Ans 3:

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

Ans 4:

Class : Class 7
they did not give the question .

Ans 5:

Class : Class 9
No relevant question

Ans 6:

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

Ans 7:

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

Ans 8:

Class : Class 6

Ans 9:

Class : Class 5
There is no question!

Ans 10:

Class : Class 6

Ans 11:

Class : Class 7

Ans 12:

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

Ans 13:

Class : Class 6
Where is the question!?

Ans 14:

Class : Class 6
there is no proper question?

Ans 15:

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

Ans 16:

Class : Class 4
where is the questionnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Ans 17:

Class : Class 6

Ans 18:

Class : Class 5
where the h

Ans 19:

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

Ans 20:

Class : Class 5
what.

Ans 21:

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

Ans 22:

Class : Class 2

Ans 23:

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

Ans 24:

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

Ans 25:

Class : Class 6
no question.report error please

Ans 26:

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

Ans 27:

Class : Class 6
this is not a question

Ans 28:

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

Ans 29:

Class : Class 9
question is incomplete

Ans 30:

Class : Class 4

Ans 31:

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

Ans 32:

Class : Class 5

Ans 33:

Class : Class 5
The question is incomplete

Ans 34:

Class : Class 5

Ans 35:

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

Ans 36:

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

Ans 37:

Class : Class 10
question is incomplete

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Subject :NSO    Class : Class 8

Ans 1:

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

Ans 2:

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

Ans 3:

Class : Class 8
explain please....

Ans 4:

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

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

Ans 8:

Class : Class 6
Thank You Mr.Rahul

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