National Science Olympiad Forum By SOF Olympiad Trainer - Page 639
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Aparna praveen from Rajagiri, Ernakulam
Subject :NSO    Class : Class 4

Ans 1:

Niharikaa Pande from BILLABONG HIGH INTERNATIONAL SCHOOL MALAD, Mumbai
Class : Class 6
Dear friends, the answer is D. There has been an error by the SOF team. Cod liver oil is a liquid, so it will flow out. As diagram Z is showing precisely that, the answer is D.

Ans 2:

Aahana Agarwal from NPS Koramangala, Bengaluru
Class : Class 6
I think it is syringe in diagram X.

Ans 3:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7
the answer is B, you can do the question and see the answer

Ans 4:

Mishika Singh from EISB, Bangalore
Class : Class 6
Answer is D

Ans 5:

Sargun Maini from The Khaitan School, NOIDA
Class : Class 6

Ans 6:

Suryansh Singh from Army Public School, Gorakhpur
Class : Class 4
D

Ans 7:

Aajani Datta from The Samhita Academy, Bangalore
Class : Class 5

Ans 8:

Ananya Kaushik from DPS Noida, Noida
Class : Class 4

Ans 9:

Sargun Maini from The Khaitan School, NOIDA
Class : Class 6
B

Ans 10:

Aviral Shukla from Apeejay School Sheikh Sarai, New Delhi
Class : Class 10
Answer is B solid cannot be compressed

Ans 11:

Sayan Duary from Vidyasagar Shishu Niketan, Paschim Medinipur
Class : Class 8

Ans 12:

Aviral Shukla from Apeejay School Sheikh Sarai, New Delhi
Class : Class 10
Answer is B solid cannot be compressed

Ans 13:

Shreeraj from ISWK, Muscat, Muscat
Class : Class 4
I got it right

Ans 14:

Anahita Saxena from Ryan International School Pune, Pune
Class : Class 3
Alright, so umm seriously the answer should be C also in the question Diagram Y. So, here it is cod liver oil which is semi-liquid = Half liquid and half solid. U can push it a little bit so the answer is C. In the book, it is turmeric powder and the answer is showing B too! I mean powder like seriously. The answer in the book should be D also in the book called Diagram Z. It is POWDER!!!!!!!!!!!!!!!!!!!! Like seriously Powder! They need to understand before writing the question in the book.

Ans 15:

Rajveer Santosh Mulik from Rims International School, Pune
Class : Class 4
LIQIUDS CAN NOT BE COMPRESSED. SO COD LIVER OIL IS IN SYRINGE XXXXXXXX @ RAJVEER

Post Your Answer

Anmol kathar from deogiri global academy, aurangabad
Subject :NSO    Class : Class 6

Ans 1:

Fazil Hussain from Vedic vidyashram senior secondary school, Tirunelveli
Class : Class 6
c is the answer

Ans 2:

rocker harshil from TImpany senior secondary school, Visakhapatnam
Class : Class 6
(C) should be the ans as .IF the like pole meets each other than they will repel each other

Ans 3:

Anmol kathar from deogiri global academy, aurangabad
Class : Class 10
pulling force means attracting force

Post Your Answer

Anmol kathar from deogiri global academy, aurangabad
Subject :NSO    Class : Class 6

Ans 1:

Shaurya Shrivastava from Amanora school, Pune
Class : Class 6
it should be 6

Ans 2:

Utsav from podar international school , shivamoga
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 3:

Shreyansh Gupta from MVN, faridabad
Class : Class 7
THE ANSWER HOULD BE 6 booooooor

Ans 4:

virat krishna from vasant valley school, New Delhi
Class : Class 6

Ans 5:

Utsav from podar international school , shivamoga
Class : Class 10

Ans 6:

Sudarshan from Suguna Pips, Coimbatore
Class : Class 6
It is wrong because they did not ask the total number of poles 😏

Ans 7:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
it is wrong, see 12 is the sum of north and south poles but 6 should be the answer!!

Ans 8:

Ashwak from Cambridge, Jalandhar
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 9:

Karthik from Euro, Bengaluru
Class : Class 7
no it is 12 as one piece has two poles so north poles and south poles =6 6=12

Ans 10:

Tamrashi Pani from National Public School, Bangalore
Class : Class 8

Ans 11:

Aditya anand from dps east, bengaluru
Class : Class 6
6 should be answer

Ans 12:

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

Ans 13:

Fazil Hussain from Vedic vidyashram senior secondary school, Tirunelveli
Class : Class 6
a

Ans 14:

Dhruv Umesh Patil from Euroschool Airoli, Navi Mumbai
Class : Class 6

Ans 15:

Vindiyaashri K from Boaz Public School , Chennai
Class : Class 9
Wrong

Post Your Answer

Anmol kathar from deogiri global academy, aurangabad
Subject :NSO    Class : Class 6

Ans 1:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
It should be a

Ans 2:

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

Ans 3:

Sharanyaa Tripathi from Uttam school for girls, Ghaziabad
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 4:

Shayan Bari from Kendriya Vidyalaya, Katihar
Class : Class 7
The poles are end point of the magnet ,so the north pole should be P.

Ans 5:

Ayansh Mallick from Birla Open Minds, Hyderabad
Class : Class 7
A

Ans 6:

Aadhira from velammal new gen school, Medavakkam, Chennai
Class : Class 6
The correct answer is (B),Q because the magnetic contact starts on Q and not on P.

Ans 7:

ADVAY BANSAL from LOTUS VALLEY INTERNATIONAL SCHOOL GURUGRAM, GURUGRAM
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 8:

Ayansh Mallick from Birla Open Minds, Hyderabad
Class : Class 7
A

Ans 9:

Tamrashi Pani from National Public School, Bangalore
Class : Class 8
The answer is B

Ans 10:

Vivaan Kumar from Heritage Xperiential Learning School, Gurgaon
Class : Class 8
B IS A WRONG ANSWER.

Ans 11:

Shaurya from Mris 51 Gurugram, Gurugram
Class : Class 7
it will be P!!!!!!!!!!!!!

Ans 12:

Mohit Shekher from ST Andrews School, Secunderabad
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 13:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
Q or R?????? PLEASE EXPLAIN MASTER ANSWER!

Ans 14:

Tamrashi Pani from National Public School, Bangalore
Class : Class 8
I agree with jigishal

Ans 15:

Tejas Singh from Freedom International School, Bangalore
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 16:

Veda Dua from Delhi Public School, R. K. Puram, New Delhi
Class : Class 10
The magnet first makes contact with Q, so, it is the North Pole of the magnet

Ans 17:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
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 18:

Manya Pujar from EuroSchool, Davangere
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 19:

malhar thorve from city internqtional school, satara road, pune
Class : Class 7

Ans 20:

Mohit Shekher from ST Andrews School, Secunderabad
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 21:

Ashwak from Cambridge, Jalandhar
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 22:

Ayansh Mallick from Birla Open Minds, Hyderabad
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 23:

Devavrat Sharma from Podar International School Powai, Mumbai
Class : Class 7
The correct answer is (B) because Q is the first point of contact.

Ans 24:

Jigishal Thool from Don Bosco School, Guwahati
Class : Class 6
AS NORTH POLE INTRODUCED AT Q PART OF THE IRON ROD SO Q WILL BE NORTH POLE.

Ans 25:

Navya from Gyanshree, Noida
Class : Class 6
IT WILL BE P!

Ans 26:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
Will P be the North Pole or Q? So confusing!!🤔🤔

Ans 27:

Naman from Svm, Nalasopara
Class : Class 6
N POLE ALWAYS GIVE THAT'S WHY A

Ans 28:

Dushyant Singh from Shree Ram Centenial School, Indore
Class : Class 9
see the solution the magnet gets in contact with q so it is the correct ans

Post Your Answer

Smriti from Apeejay, Nerul, Navi Mumbai
Subject :NSO    Class : Class 5

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
It was not there. ;)

Ans 2:

Karan Chavan from GIIS,Chinchwad, Pune
Class : Class 5
who knows they will give or not give

Post Your Answer

sudiksha Bhaskar Chaudhary from Shri Mahavir Jain English School,Kalyan west, Kalyan west
Subject :NSO    Class : Class 3

Ans 1:

Ram Prasanna from Basil Woods International, Hyderabad
Class : Class 3
The answer is c

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

Ans 3:

Kashika Goel from DPS Noida, Noida
Class : Class 7
C

Ans 4:

Kanishk bhati from G D goenka school gzb, ghaziabad
Class : Class 3
oh I thinked it is (A)

Ans 5:

Aarna Agarwal from Manav Rachna International School, Gurgaon
Class : Class 5

Post Your Answer

Sanket Kulkarni from Euroschool, Pune
Subject :NSO    Class : Class 6

Post Your Answer

Anmol kathar from deogiri global academy, aurangabad
Subject :NSO    Class : Class 6

Ans 1:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
Class : Class 9
I meant option 'D' not option B sorry for the mistake in my arguement

Ans 2:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 10

Ans 3:

Jayaditya Pratihari from Ganges Valley School, Hyderabad
Class : Class 10
UHHH How answer D???

Ans 4:

Aarav Chopra from Springdales School, New Delhi
Class : Class 7
ya i bet it is c

Ans 5:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
Class : Class 9
dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Ans 6:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
Class : Class 9
I m

Ans 7:

Advik from DPS Patna, Patna
Class : Class 4
ccc

Ans 8:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
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'

Ans 9:

arin chaitanya from the shri ram school, New Delhi
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 10:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 9

Post Your Answer

Sanket Kulkarni from Euroschool, Pune
Subject :NSO    Class : Class 6

Ans 1:

Aarush Goyal from D.A.V Pblic school, Sector 14, Faridabad
Class : Class 6
i also want to know the same question

Ans 2:

ARYAN AGRAWAL from NPS KORAMANGALA, BANALORE
Class : Class 8
I feel it is not decreasing but increasing so answer will be a

Post Your Answer

Siddhi from Cambridge Court High School, Jaipur
Subject :NSO    Class : Class 5

Ans 1:

Hemanth from The Camford International School , Coimbatore
Class : Class 5

Ans 2:

SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH
Class : Class 8
answer is D

Ans 3:

Swastik from st marys school, new delhi
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 4:

Swastik from st marys school, new delhi
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 5:

Ashwak from Cambridge, Jalandhar
Class : Class 9
D

Ans 6:

Bhuvika Jindal from sfs indirapuram, gzb
Class : Class 6

Ans 7:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
Due to gravity, both will move downwards, so the correct answer is d

Ans 8:

Ishita Dash from DPS Nerul, Navi Mumbai
Class : Class 8
answer is D

Ans 9:

Riaant from DPSdwarka,
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 10: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 11:

SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH
Class : Class 8
answer is D

Ans 12:

Advait kaushik from Ryan international school, Gurugram
Class : Class 8
There is ice water so it doesn't mean that gravity is gone man

Post Your Answer