National Science Olympiad Forum By SOF Olympiad Trainer - Page 496
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Archana Verma from EuroSchool , Pune
Subject :NSO    Class : Class 4

Ans 1:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
NA

Ans 2:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
😓how.????

Ans 3:

Vikas Jhamb from Bhawan, Chandigarh
Class : Class 3

Ans 4:

KSHITIJ BHATIA from St Francis De Sales, New Delhi
Class : Class 4

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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 3

Ans 1:

from ,
Class :
D

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

Madhuri P from ,
Class : Class 4
you need to specify if waning or waxing crescent

Ans 2:

Virat from K l international, Meerut
Class : Class 5
You need to specify whether it is a waxing or waning crescent.

Ans 3:

Tejesh VB from GEMS New Millennium School, Al Khail, Dubai
Class : Class 8

Ans 4:

Vedang Siddharth Thakare from SMT's Saraswati English Medium School., Thane
Class : Class 4

Ans 5:

Jayanth from The Deens Academy, Bengaluru
Class : Class 4
You have to specify if waxing or waning crescent

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yagna from DPS, Surat
Subject :NSO    Class : Class 8

Ans 1:

Prabhav Kaushik from DPS Noida, Noida
Class : Class 10

Ans 2:

Abhay Agarwal from St Francis School, Ghaziabad
Class : Class 9
yes i too did B

Ans 3:

Akshay Malhan from NHSS, Thane
Class : Class 8
logically it should be B but sof says otherwise. why ????

Ans 4:

vatsal jay gandhi from new era senior secondary school, Vadodara
Class : Class 8
Please explain it. I am also confused about the answer. I myself did B.

Ans 5:

Dev Rawat from R D Rajpal School, New Delhi
Class : Class 8
The answer is B

Ans 6:

Vishwanath Halkeri from sudarshan vidya mandir, Bangalore
Class : Class 8

Ans 7:

ARNAV BARANWAL from KPS SCHOOL, bhilai
Class : Class 4
answer should be B

Ans 8:

Nilanjana De from Delhi Public School North, Bengaluru
Class : Class 8
The answer key says that X will not light up,but why?

Ans 9:

Vaidheesh Bharadwaj from NPS, Bangalore
Class : Class 7
I too am confused as current will also flow through both the bulbs when circuit is closed. It will pass through the switch first and hence lighting up bulb Y.

Ans 10:

Kingshuk Gupta from RN Podar school, Mumbai
Class : Class 9

Ans 11:

Yatharth Agrawal from Indira National school, Pune
Class : Class 8
It must be B.The current finds a more direct path to Y, Making it brighter.But the current still reaches X because there is still a path. SOF Says otherwise.

Ans 12:

SaiKrishna from Chettinad Vidyashram, Chennai
Class : Class 3
Option D is correct because current prefers the path that offers less resistance. The bulb provides resistance whereas the switch when closed does not. Hence correct answer is D

Ans 13:

Triguna from Kendriya Vidyalaya No.1 Salt Lake, Kolkata
Class : Class 8
X will light up... I think it's incorrect....

Ans 14:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb is correct as current will flow though X but I do feel that current will prefer less resistant path so D can also be correct

Ans 15:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7
answer should be b because X will also lit up

Ans 16:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
b

Ans 17:

Advait talnikar from Dhruv Global School, Sangamner
Class : Class 6
The answer should be B as it will be closed circuit

Ans 18:

Priyanshi from Delhi Public School Agra, Agra
Class : Class 9
Yess,my answer was B also

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DIKSHIT SUNDAR from vidhysaram, chennai
Subject :NSO    Class : Class 5

Ans 1:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 2:

ishaan from lvis, noida
Class : Class 5
c

Ans 3:

Hitanshi Behera from Loyola School , Bhubaneswar
Class : Class 4
ans is D so easy

Ans 4:

Aaditya Malhotra from Isaac Newton Global School, Mumbai
Class : Class 3
D

Ans 5:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 6:

Rishit Garg from Bhavan s B P Vidya Mandir , Nagpur
Class : Class 9

Ans 7:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10
Sorry all, I had not read the question well.😞😞

Ans 8:

Sumit Biswal from Dps gandhinagar, Gandhinagar
Class : Class 7
I was a bit confused between C and D

Ans 9:

Ujjwal Upadhyay from Navy Children school, Vasco
Class : Class 6
The answer is d

Ans 10:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
Sorry , my brother changed the C into D . It should be C only !

Ans 11:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
It is a very serious thing for us that we are getting wrong answers from SOF . It should be D only !

Ans 12:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10

Ans 13:

Suhani from DPSG, Modinagar
Class : Class 9
The answer is c

Ans 14:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
no chart no answer

Ans 15:

Hitarth Bhardwaj from Teoler High School, Jaipur
Class : Class 6
Veer Sehrawat, how c, the question says which town is located near an unpolluted river not a polluted river.

Ans 16:

FAIZAN HUSSAIN from SYED ABID HUSSAIN SR. SEC. CHOOL (MIDDLE SECTION), DELHI
Class : Class 4
Low High Many Many

Ans 17:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 18:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
d

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA
Class : Class 9

Ans 2:

ishit from EUROSCHOOL THANE, THANE WEST
Class : Class 7

Ans 3:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
NA

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
What is mimicry?

Ans 2:

Tejesh VB from GEMS New Millennium School, Al Khail, Dubai
Class : Class 8

Ans 3:

SIDDHARTH KUMAR CHATTERJEE from NAVY CHILDREN SCHOOL , CHICALIM
Class : Class 7
Mocking or copying.

Ans 4:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
😓😓copying

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