National Science Olympiad Forum By SOF Olympiad Trainer - Page 144

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

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
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 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

Ans 7:

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

Ans 8:

Class : Class 6
shall be BBBBBBBBBBBBBBBBBBBBBBBBBBB

Ans 9:

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
Can anyone please explain?

Ans 2:

Class : Class 8

Ans 3:

Class : Class 6

Ans 4:

Class : Class 6

Ans 5:

Class : Class 8
Please explain

Ans 6:

Class : Class 6
please explain

Ans 7:

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 8:

Class : Class 6

Ans 9:

Class : Class 8
Does anyone understand this?

Ans 10:

Class : Class 6
9 should be the answer

Ans 11:

Class : Class 6
answer is 9

Ans 12:

Class : Class 7

Ans 13:

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

Ans 14:

Class :
Please give more questions like this

Ans 15:

Class : Class 7
Kindly explain.......

Ans 16:

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

Ans 17:

Class : Class 6

Ans 18:

Class : Class 6
How 11cm

Ans 19:

Class : Class 7
answer should be 9

Ans 20:

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

Ans 21:

Class : Class 8
Yes austin

Ans 22:

Class : Class 6
Should be ( as 12 2

Ans 23:

Class : Class 7
Tis is not in synopsis

Ans 24:

Class : Class 7
The answer should be 9

Ans 25:

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 26:

Class : Class 6
explain

Ans 27:

Class : Class 7
It's nine.

Ans 28:

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

Ans 29:

Class : Class 6

Ans 30:

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

Ans 31:

Class : Class 7

Ans 32:

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

Ans 33:

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.

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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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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 4
Option B is the right answer because dahlia using vegetative propagation grows through roots and begonia through leaves and potato through buds

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