National Science Olympiad Forum By SOF Olympiad Trainer - Page 149

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 9

Ans 3:

Class : Class 8

Ans 4:

Class : Class 9

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
wrong diagram according to the question!!

Ans 2:

Class : Class 8
wrong questionno relation between the diagram and optionno sense

Ans 3:

Class : Class 7

Ans 4:

Class : Class 6
Exactly right!

Ans 5:

Class : Class 8
THAT DOESN'T MAKE SENSE. the diagram has no relation to the questions or the options because the figure of the concentration of oxygen in blood of something but the options and the questions are related to plants. the labels in the diagram are P,Q,R,S meanwhile the labels in the questions areX,Y,Z. There are a lot of errors like this that I am facing nowadays so I would kindly request S O F to please correct these issues ,specially in chapterwise

Ans 6:

Class : Class 7
wth is this question the diagram or the question has no relaiton to the option

Ans 7:

Class : Class 8

Ans 8:

Class : Class 8
With due respect, I'd like to bring in SOF's notice that the diagram in the above question is incorrect. The diagram given above is of the concentration of blood in four men, whereas here, we have asked about the functions of some marked plant parts. I ask SOF to rectify this error,

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
The needle should point towards South pole because the Earth's North Pole is actually the South pole of a bar magnet. Compass needle always points to the geographical North pole.

Ans 2:

Class : Class 6
it should be ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 3:

Class : Class 8

Ans 4:

Class : Class 7
The earth's north pole acts like a south pole to the magnet as it attracts the north pole of a magnet (The earth's north pole attracts the north pole of a magnet). This means that the needle of a compass is always the north pole. So, the needle will point to the south pole of the other magnet. In simple words, the North pole of the earth is actually the south pole for a magnet.

Ans 5:

Class : Class 6
Shouldn't the correct answer be (A), since a compass needle ALWAYS points in the North Direction? Pls Help.

Ans 6:

Class : Class 6
North and South attract each other. Since the compass is placed in the middle of the bar magnet and not ON it and the North pole of the compass needle can face the South pole of the magnet diagonally only, should not the correct answer be C? Also, the north pole of the Earth's magnetic field should not come into consideration here, I think.

Ans 7:

Class : Class 6

Ans 8:

Class : Class 6
But a compass always points to the magnetic north pole, not geographic north pole right?

Ans 9:

Class : Class 6

Ans 10:

Class : Class 6
shall be BBBBBBBBBBBBBBBBBBBBBBBBBBB

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Here it is asking how far away boy Y would APPEAR to be in the mirror to boy X, as in, from boy X's perspective. Y is 12 m away from the MIRROR. He moves 5 m closer12-5=7This is where confusion may set in. A lot of people have added X's distance from the mirror(2 m)7 2=9Here, we are getting the total as 9 m.. However, it is also necessary to add 2 m for the reflected ray to travel to X so that he can see the image.9 2=11Hence, the answer is 11 m.

Ans 2:

Class : Class 8
Yes austin

Ans 3:

Class : Class 7

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6
explain

Ans 6:

Class : Class 2
12-5=77*2=14that should be the answer

Ans 7:

Class : Class 6
Should be ( as 12 2

Ans 8:

Class : Class 7
Tis is not in synopsis

Ans 9:

Class : Class 7
the distance in the mirror of boy y would be 9m but distance from mirror to boy x would be 9 plus 2= 11

Ans 10:

Class : Class 7
It's nine.

Ans 11:

Class : Class 6

Ans 12:

Class : Class 6

Ans 13:

Class : Class 7
The answer should be 9

Ans 14:

Class : Class 7
@ Rachita Gupta-I don't know I'm confused now.

Ans 15:

Class : Class 8
Does anyone understand this?

Ans 16:

Class : Class 8
Can anyone please explain?

Ans 17:

Class : Class 6
The answer should be 9m as 12 2=14-5=9

Ans 18:

Class : Class 7
How 11cm

Ans 19:

Class : Class 8
Please explain

Ans 20:

Class : Class 6
Kindly explain.......

Ans 21:

Class : Class 7
it is 9m as 12m - 5m = 7m , 7m 2m = 9m , kindly the correct answer is 9m .

Ans 22:

Class : Class 6
please explain

Ans 23:

Class : Class 7

Ans 24:

Class : Class 6
9 should be the answer

Ans 25:

Class :
Please give more questions like this

Ans 26:

Class : Class 7
answer should be 9

Ans 27:

Class : Class 8

Ans 28:

Class : Class 2
12-5 =7 7 2=9answer is 9

Ans 29:

Class : Class 7
@Rachita Gupta- They are asking how far away boy-y would appear to be from BOY-X not the mirror so I'm guessing it should be 9m.

Ans 30:

Class : Class 6

Ans 31:

Class : Class 8
Correct answer is 9m. Already explained in olympaid prep-guide book.

Ans 32:

Class : Class 6

Ans 33:

Class : Class 6
answer is 9

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 7
It is so easy

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Subject :NSO    Class : Class 10

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