National Science Olympiad Forum By SOF Olympiad Trainer - Page 151

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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 9

Ans 4:

Class : Class 8

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Subject :NSO    Class : Class 7

Ans 1:

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

Ans 2:

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 3:

Class : Class 8

Ans 4:

Class : Class 6
Exactly right!

Ans 5:

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

Ans 6:

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 7:

Class : Class 7

Ans 8:

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

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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 8

Ans 3:

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

Ans 4:

Class : Class 6
it should be ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 5:

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

Ans 8:

Class : Class 6

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
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 7
How 11cm

Ans 2:

Class : Class 8
Does anyone understand this?

Ans 3:

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 4:

Class : Class 6

Ans 5:

Class : Class 8
Yes austin

Ans 6:

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

Ans 7:

Class : Class 7

Ans 8:

Class : Class 8

Ans 9:

Class : Class 6
9 should be the answer

Ans 10:

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 11:

Class : Class 7
It's nine.

Ans 12:

Class : Class 7

Ans 13:

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

Ans 14:

Class : Class 8
Can anyone please explain?

Ans 15:

Class :
Please give more questions like this

Ans 16:

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

Ans 17:

Class : Class 7
Tis is not in synopsis

Ans 18:

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

Ans 19:

Class : Class 7
answer should be 9

Ans 20:

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

Ans 21:

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

Ans 22:

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 23:

Class : Class 6
Should be ( as 12 2

Ans 24:

Class : Class 7

Ans 25:

Class : Class 6
answer is 9

Ans 26:

Class : Class 6
explain

Ans 27:

Class : Class 8
Please explain

Ans 28:

Class : Class 6
please explain

Ans 29:

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

Ans 30:

Class : Class 6

Ans 31:

Class : Class 6

Ans 32:

Class : Class 6

Ans 33:

Class : Class 7
The answer should be 9

Ans 34:

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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Subject :NSO    Class : Class 10

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