National Science Olympiad Forum By SOF Olympiad Trainer - Page 202

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9

Ans 4:

Class : Class 8

Ans 5:

Class : Class 8

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Subject :NSO    Class : Class 7

Ans 1:

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,

Ans 2:

Class : Class 7

Ans 3:

Class : Class 8

Ans 4:

Class : Class 6
Exactly right!

Ans 5:

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

Ans 6:

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

Ans 7:

Class : Class 3
wrong questionno relation between the diagram and optionno sense

Ans 8:

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

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6

Ans 3:

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

Ans 4:

Class : Class 6

Ans 5:

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 6:

Class : Class 8

Ans 7:

Class : Class 6
shall be BBBBBBBBBBBBBBBBBBBBBBBBBBB

Ans 8:

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 9:

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 10:

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

Ans 11:

Class : Class 6
it should be ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

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

Ans 2:

Class : Class 8
Does anyone understand this?

Ans 3:

Class : Class 6
9 should be the answer

Ans 4:

Class : Class 8
The answer should be 9

Ans 5:

Class : Class 8
The answer should be 9m as 12 2=14-5=9

Ans 6:

Class : Class 7
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 7:

Class : Class 9
Please explain

Ans 8:

Class : Class 7

Ans 9:

Class : Class 6

Ans 10:

Class : Class 7
How 11cm

Ans 11:

Class : Class 6
explain

Ans 12:

Class : Class 7
It's nine.

Ans 13:

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

Ans 14:

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

Ans 15:

Class : Class 7
answer should be 9

Ans 16:

Class : Class 6

Ans 17:

Class : Class 7
Tis is not in synopsis

Ans 18:

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

Ans 19:

Class : Class 8
Yes austin

Ans 20:

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 21:

Class : Class 7

Ans 22:

Class :
Please give more questions like this

Ans 23:

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 24:

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

Ans 25:

Class : Class 6
The Answer Should be 9 = 12m-5m= 7m 2m = 9m

Ans 26:

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

Ans 27:

Class : Class 6

Ans 28:

Class : Class 6
Should be ( as 12 2

Ans 29:

Class : Class 6
please explain

Ans 30:

Class : Class 9

Ans 31:

Class : Class 7

Ans 32:

Class : Class 8
Can anyone please explain?

Ans 33:

Class : Class 6
answer is 9

Ans 34:

Class : Class 6

Ans 35:

Class : Class 6
The answer is 9m only, as there are 2 methods: 1. 12 2=14m. 14-5=9m. 2. 12-5=7m. 7 2=9m.

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 7
It is so easy

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