National Science Olympiad Forum By SOF Olympiad Trainer - Page 443
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 5

Ans 1:

Ujjwal Upadhyay from Navy Children school, Vasco
Class : Class 6
Answer is B.

Ans 2:

Ashee Srivastava from APEEJAY SCHOOL NOIDA , NOIDA
Class : Class 7
b

Ans 3:

Shraddha S Nair from Bright CBSE, Day school vasna, Vadodara
Class : Class 7
Sorry sorry the Mars will take more time who ever isReading my post

Ans 4:

RAMAYANI PAKHARE from S M SHETTY HIGH SCHOOL, MUMBAI
Class : Class 6
B

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 8
Biju Pappachan ... Whom do you address as Snow White ?

Ans 6:

Gayatri Iyer from Sanskriti School, Pune
Class : Class 6
Who is this Snow White, man!

Ans 7:

Pratham Dave from GNS, Bangalore
Class : Class 7
B is the answer to this question

Ans 8:

Ashwak from Cambridge, Jalandhar
Class : Class 8

Ans 9:

Raksheet Shah from Swami Vivekanad International School, Mumbai
Class : Class 8
answer is B

Ans 10:

Arnav Nandan from ST PETERS COLLEGE AGRA, Agra
Class : Class 8
B because it means ( here ) that orbit will be bigger as a planet is away from sun and, longer distance means long revolution

Ans 11:

sankerths s from Shishya BELM public School, Bangalore
Class : Class 10

Ans 12:

Biju Pappachan from Rkc , Raipur
Class : Class 1
Hello Snow White!haha

Ans 13:

Biju Pappachan from Rkc , Raipur
Class : Class 1
Take no offence,Snow White.

Ans 14:

Shraddha S Nair from Bright CBSE, Day school vasna, Vadodara
Class : Class 7
Answer is B . If we imagine that the planet X is mercuryAnd planet Y is Mars who will take more time it will be Mercury because it is near to the sun and will revoluteFaster than Mars

Ans 15:

sarah pranav gothivarekar from Indian School Al Gubra, Muscat
Class : Class 4

Ans 16:

Biju Pappachan from Rkc , Raipur
Class : Class 1
Any ways,can anyone explain??

Post Your Answer

Archana Verma from EuroSchool , Pune
Subject :NSO    Class : Class 4

Avinash grouped plants on the basis of their habitats. By mistake, he placed one wrong plant in each group. Identify the odd member of each group and select the correct option.
Group I : Duckweed, Hydrilla, Opuntia
Group II : Banyan, Mango, Acacia
Group III : Barrel cactus, Joshua tree, Vallisneria

A Duckweed in group I is incorrectly placed and should be replaced with arrowhead plant.
B Mango in group II should be interchanged with Joshua tree in group III.
C Opuntia in group I should be interchanged with Vallisneria in group III.
D Banyan in group II is incorrectly placed and should be replaced with gulmohar.

Ans 1:

Bushra aslam from uttam, Ghaziabad
Class : Class 8
NA

Ans 2:

Bushra aslam from uttam, Ghaziabad
Class : Class 8
😓how.????

Ans 3:

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

Ans 4:

Vikas Jhamb from Bhawan, Chandigarh
Class : Class 4

Post Your Answer

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

Post Your Answer

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

Ans 1:

SOUMI PAL from DELHI PUBLIC SCHOOL, DURG
Class : Class 6

Post Your Answer

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

Post Your Answer

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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Post Your Answer

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

Ans 1:

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

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:

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 5:

ARNAV BARANWAL from KPS SCHOOL, bhilai
Class : Class 8
answer should be B

Ans 6:

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

Ans 7:

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

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:

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 10:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
b

Ans 11:

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

Ans 12:

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

Ans 13:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6
answer should be b because X will also lit up

Ans 14:

Prabhav Kaushik from DPS Noida, Noida
Class : Class 8

Ans 15:

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

Ans 16:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6
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 17:

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 18:

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.

Post Your Answer

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

Ans 1:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 2:

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

Ans 3:

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 4:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 5:

Anantjit Chander from The Modern School, Sector 85, Greater Faridabad, Faridabad
Class : Class 8

Ans 6:

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 7:

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

Ans 8:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 9:

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

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:

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

Ans 12:

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

Ans 13:

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

Ans 14:

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

Ans 15:

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

Ans 16:

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

Ans 17:

Anantjit Chander from The Modern School, Sector 85, Greater Faridabad, Faridabad
Class : Class 8
Sorry all, I had not read the question well.😞😞

Post Your Answer

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

Ans 1:

Bushra aslam from uttam, Ghaziabad
Class : Class 8
NA

Ans 2:

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

Ans 3:

ishit from EUROSCHOOL THANE, THANE WEST
Class : Class 7

Post Your Answer

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

Post Your Answer