National Science Olympiad Forum By SOF Olympiad Trainer - Page 432

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
correct answer is D

Ans 2:

Class : Class 7

Ans 3:

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 4:

Class : Class 4

Ans 5:

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 6:

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

Ans 7:

Class : Class 8
The correct answer is C

Ans 8:

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 9:

Class : Class 6
the answer is d

Ans 10:

Class : Class 5

Ans 11:

Class : Class 4
It is option B

Ans 12:

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

Ans 13:

Class : Class 5

Ans 14:

Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 5
ANS A

Ans 3:

Class : Class 5
Answer is C

Ans 4:

Class : Class 5
ans is B

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
question is incomplete

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5
Where is the question!?

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6
no question.report error please

Ans 6:

Class : Class 6

Ans 7:

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

Ans 8:

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

Ans 9:

Class : Class 7
they did not give the question .

Ans 10:

Class : Class 6

Ans 11:

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

Ans 12:

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

Ans 13:

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

Ans 14:

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

Ans 15:

Class : Class 5

Ans 16:

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

Ans 17:

Class : Class 4

Ans 18:

Class : Class 5
The question is incomplete

Ans 19:

Class : Class 5
what.

Ans 20:

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

Ans 21:

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

Ans 22:

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

Ans 23:

Class : Class 8
question is incomplete

Ans 24:

Class : Class 5
There is no question. What are we supposed to answer. It is incomplete

Ans 25:

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

Ans 26:

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

Ans 27:

Class : Class 5
There is no question!

Ans 28:

Class : Class 5
report error

Ans 29:

Class : Class 9
No relevant question

Ans 30:

Class : Class 2

Ans 31:

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

Ans 32:

Class : Class 4
where is the questionnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Ans 33:

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

Ans 34:

Class : Class 6
there is no proper question?

Post Your Answer

Subject :NSO    Class : Class 8

Ans 1:

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

Ans 2:

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

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 6
Thank You Mr.Rahul

Ans 6:

Class : Class 8

Ans 7:

Class : Class 9
But wont the refraction of light in water play a role?

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

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 7

Ans 3:

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 4:

Class : Class 7

Ans 5:

Class : Class 7

Ans 6:

Class : Class 6

Ans 7:

Class : Class 6
D

Ans 8:

Class : Class 9
Answer is B

Ans 9:

Class : Class 7

Ans 10:

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

Ans 11:

Class : Class 7

Ans 12:

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

Ans 13:

Class : Class 9

Ans 14:

Class : Class 6
the answer is D

Ans 15:

Class : Class 6

Ans 16:

Class : Class 7
according to me D is correct

Ans 17:

Class : Class 8
pls explain how the answer is B

Ans 18:

Class : Class 3
D is the correct answer

Ans 19:

Class : Class 8

Ans 20:

Class : Class 10
D is the correct answer.

Ans 21:

Class : Class 9
D is definitely the correct answer

Ans 22:

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 23:

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 24:

Class : Class 6
pls explain how the answer is B

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Subject :NSO    Class : Class 6

Read the given statements and select the correct option.
Statement 1 : Fibres are first spun into yarns, which are then woven or knit into fabrics.
Statement 2 : Weaving is done by interlacing two sets of fibres at right angles on a loom.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true and statement 2 is false.
DBoth statements 1 and 2 are false.


Ans 1:

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

Ans 2:

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

Ans 3:

Class : Class 7
it is cccccccccccccccccccccc!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 4:

Class : Class 7

Ans 5:

Class : Class 8
The answer is B

Ans 6:

Class : Class 7
answer is B

Ans 7:

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

Ans 8:

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

Ans 9:

Class : Class 7
thanks for the answer