National Science Olympiad Forum By SOF Olympiad Trainer - Page 667

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
(C) should be the ans as .IF the like pole meets each other than they will repel each other

Ans 2:

Class : Class 10
pulling force means attracting force

Ans 3:

Class : Class 6
c is the answer

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 8

Ans 3:

Class : Class 10
UTSAV C PATEL from Podar International School SHIVAMOGAClass;It is wrong answer as they did not ask the total number of poles

Ans 4:

Class : Class 10

Ans 5:

Class : Class 6
6 should be answer

Ans 6:

Class : Class 9
It is incorrect as there are six north poles and six south poles present in a magnet if it is broken into six pieces

Ans 7:

Class : Class 7
THE ANSWER HOULD BE 6 booooooor

Ans 8:

Class : Class 6

Ans 9:

Class : Class 6
a

Ans 10:

Class : Class 7
no it is 12 as one piece has two poles so north poles and south poles =6 6=12

Ans 11:

Class : Class 6
It is wrong because they did not ask the total number of poles 😏

Ans 12:

Class : Class 9
Wrong

Ans 13:

Class : Class 9
IT is not correct .... because they did not ask total number of poles ....it should be A {SIX}

Ans 14:

Class : Class 8
it is wrong, see 12 is the sum of north and south poles but 6 should be the answer!!

Ans 15:

Class : Class 6
it should be 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
Will P be the North Pole or Q? So confusing!!🤔🤔

Ans 2:

Class : Class 7
Sorry R would be the south pole because of the reason:Q becomes the North pole, and R, where the magnet is lifted becomes the south pole.

Ans 3:

Class : Class 9
see the solution the magnet gets in contact with q so it is the correct ans

Ans 4:

Class : Class 9
It should be a

Ans 5:

Class : Class 6
The correct answer is (B),Q because the magnetic contact starts on Q and not on P.

Ans 6:

Class : Class 8
If you clearly notice, the arrow is first coming in contact with Part Q, and the arrow is above in Part P. First, the magnet comes in contact with part Q, so when the iron rod is magnetised, Part Q will be North pole.

Ans 7:

Class : Class 8
The answer is B

Ans 8:

Class : Class 7
In the above process of magnetisation, the magnet makes its first contact with the iron rod on place R, so R would be the North pole of the magnetised iron bar.

Ans 9:

Class : Class 7
A

Ans 10:

Class : Class 6
AS NORTH POLE INTRODUCED AT Q PART OF THE IRON ROD SO Q WILL BE NORTH POLE.

Ans 11:

Class : Class 8
it has started magnetising from Q SO THATS WHY IT IS TELLING THAT Q WILL BE THE NORTH SEEKING POLE.

Ans 12:

Class : Class 7
The poles are end point of the magnet ,so the north pole should be P.

Ans 13:

Class : Class 7
it will be P!!!!!!!!!!!!!

Ans 14:

Class : Class 9
Q or R?????? PLEASE EXPLAIN MASTER ANSWER!

Ans 15:

Class : Class 6
A IS TH CORRECT ANSWER. In the figure they started stoking the iron piece from point P which is the starting of the iron rod. so the correct answer is A.....

Ans 16:

Class : Class 6
As north seeking pole is geographic south pole so R is north seeking pole. so , basically the south pole is the north seeking pole and as the north pole is facing downwards and starting with Q so south pole will be R . Hence, R is the north seeking pole and option C is the correct option.

Ans 17:

Class : Class 6
I didnt understand how it is R, can someone explain? Because according to me, the first point of contact is Q, but maybe that's not how it works....

Ans 18:

Class : Class 6
N POLE ALWAYS GIVE THAT'S WHY A

Ans 19:

Class : Class 7

Ans 20:

Class : Class 7
The correct answer is (B) because Q is the first point of contact.

Ans 21:

Class : Class 8
B IS A WRONG ANSWER.

Ans 22:

Class : Class 6
IT WILL BE P!

Ans 23:

Class : Class 8
I agree with jigishal

Ans 24:

Class : Class 9
At first, I also thought that it will be A but if you see the figure closely, you can see that the magnet first comes in contact with point Q, it is rubbed till R and is then lifted at R point. So, Point Q would be the north pole and the point R would be the south pole

Ans 25:

Class : Class 9
Yes it should be A ......because it is not possible that some of the iron bar is magnet and some is iron ....in the given figure starting of the stroke is point is Q but before that is point P which is starting of the rod so the CORRECT answer is A ..

Ans 26:

Class : Class 10
The magnet first makes contact with Q, so, it is the North Pole of the magnet

Ans 27:

Class : Class 7
The answer is P as you can clearly see the iron rod should allow the magnetism to flow like what happens when you chain a nail, even though you are affecting only the top part the whole screw is affected hence proving the answer is wrong

Ans 28:

Class : Class 7
A

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
It was not there. ;)

Ans 2:

Class : Class 5
who knows they will give or not give

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5

Ans 2:

Class : Class 3
oh I thinked it is (A)

Ans 3: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 4:

Class : Class 3
The answer is c

Ans 5:

Class : Class 7
C

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 4
ccc

Ans 2:

Class : Class 9
answer should be c as the wire is connecting to p and r ALSO IF THE FILAMENT IS BROKEN ONLY Q CAN NOT LIGHT UP.

Ans 3:

Class : Class 9
I meant option 'D' not option B sorry for the mistake in my arguement

Ans 4:

Class : Class 7
ya i bet it is c

Ans 5:

Class : Class 9
I m

Ans 6:

Class : Class 9
dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Ans 7:

Class : Class 9

Ans 8:

Class : Class 10

Ans 9:

Class : Class 10
UHHH How answer D???

Ans 10:

Class : Class 9
If the filament of bulb Q is fused then the circuit is not being completed because the electrons won't be able to reach the positive terminal as they would be stopped by the broken filament and electricity won't be able to pass through the filament to the negative terminal and due to the two cases that a circuit has to be completed for electricity to move and second one given it is proven that option 'B' is the correct option instead of 'A' 'C' or ' D'

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
i also want to know the same question

Ans 2:

Class : Class 8
I feel it is not decreasing but increasing so answer will be a

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Due to the cooling effect of ice water, the air in the U-tube contracts, due to which the red ink X and Y move downwards.

Ans 2: (Master Answer)

Class : Class 1

Ans 3:

Class : Class 8
answer is D

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6
answer is d because due to the incoming air because of cold water if the water was hot then the ink drops would move up

Ans 6:

Class : Class 5
i had this correct but sof result is showing correct answer is d and i have writen d. BAD MALFUNCTION AND NEGATIVE MARKING IS THERE

Ans 7:

Class : Class 8
Due to gravity, both will move downwards, so the correct answer is d

Ans 8:

Class : Class 8
answer is D

Ans 9:

Class : Class 9
D

Ans 10:

Class : Class 8
There is ice water so it doesn't mean that gravity is gone man

Ans 11:

Class : Class 8
answer is D

Ans 12:

Class : Class 5

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
D

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
answer is D

Ans 4:

Class : Class 4

Ans 5:

Class : Class 3
ans should be a coz liver only secretes bile which digests fats not pancreas

Ans 6:

Class : Class 3
ans is d!!

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