National Science Olympiad Forum By SOF Olympiad Trainer - Page 485

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10

Ans 2:

Class : Class 10
It should be option c

Ans 3:

Class : Class 8
both 1 and 3 should be answers

Ans 4:

Class : Class 8
speed =frequency*wavelength so frequency is inversely proportional to wavelength so if frequency changes the wavelength will also change

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
B

Ans 2:

Class : Class 4
it should be c or d but it tells b

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
handspan and footspan are a unit measuring ok

Ans 2:

Class : Class 4
so answer is b

Ans 3:

Class : Class 5
d

Ans 4:

Class : Class 5
D

Ans 5:

Class : Class 9
D

Ans 6:

Class : Class 5
correct answer is d okkkkkkkkkkkkkkkkkkk

Ans 7:

Class : Class 3
d

Ans 8:

Class : Class 2
d!!!!!!!!!!!!!!!!!!!!!!!!!!!!!👍🏼

Ans 9:

Class : Class 3
B

Ans 10:

Class : Class 5
D

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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 3

Ans 2:

Class : Class 5

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 8

Ans 1:

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

Ans 2:

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

Ans 3:

Class : Class 4
NA means no answer but what we had to do with it

Ans 4:

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

Ans 5:

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

Ans 6:

Class : Class 10

Ans 7:

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

Ans 8:

Class : Class 9
Please explain the answer

Ans 9:

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

Ans 10:

Class : Class 8
PLEASE GIVE THE ANSWER ALONG WITH EXPLANTION

Ans 11:

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

Ans 12:

Class : Class 4

Ans 13:

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

Ans 14:

Class : Class 8

Ans 15:

Class : Class 10

Ans 16:

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 17:

Class : Class 9
What the heck is going on.

Ans 18:

Class : Class 7

Ans 19:

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

Ans 20:

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

Ans 21:

Class : Class 7
what does NA mean?

Ans 22:

Class : Class 9
why no reply...

Ans 23:

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 24:

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

Ans 25:

Class : Class 9

Ans 26:

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

Ans 27:

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

Ans 28:

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

Ans 29:

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

Ans 30:

Class : Class 8

Ans 31:

Class : Class 9

Ans 32:

Class : Class 6

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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 9
please explain this question

Ans 3:

Class : Class 9

Ans 4:

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

Ans 5:

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

Ans 6:

Class : Class 8
Can someone please explain this question?

Ans 7:

Class : Class 8
please explain this question.

Ans 8:

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 9:

Class : Class 9

Ans 10:

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

Ans 11:

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

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
It is option B

Ans 2:

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

Ans 3:

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 4:

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 5:

Class : Class 5

Ans 6:

Class : Class 5

Ans 7:

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 8:

Class : Class 4
correct answer is D

Ans 9:

Class : Class 8
The correct answer is C

Ans 10:

Class : Class 8

Ans 11:

Class : Class 9

Ans 12:

Class : Class 4

Ans 13:

Class : Class 9
the answer is d

Ans 14:

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

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