National Science Olympiad Forum By SOF Olympiad Trainer - Page 646
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aryan vir from lotusvalley international school gurugram, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Sargah Surya from bgsnps, Bengaluru
Class : Class 4
They have asked incorrect. Even I went wrong here

Ans 2:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9
The answer is A and not D since the terminals of the battery are not connected in a proper way.

Ans 3:

Basundhara Ghosh from Birla High School Mukundapur , Kolkata
Class : Class 7
Answer is B not D

Ans 4:

Hprakash09 from Billabong high Bhopal, Bhopal
Class : Class 7
the answer is (A) and not (D)

Ans 5:

Vihaan Agrawal from Lotus Valley International School, Gurgaon
Class : Class 7
it can also be B

Ans 6:

ALICE from Delhi Public School, UDAIPUR
Class : Class 9
The answer should be 'B'

Ans 7:

Midhuna from ABCD, Banglore
Class : Class 3
find incorrect option not correct

Ans 8:

Shubhangi Pathak from Lilavatibai Podar High School, Mumbai
Class : Class 8
Guys, the question says to find the incorrect option not correct one!

Ans 9:

Aarushi Chaubey from Teoler High School, Jaipur
Class : Class 8
the answer (a) not (d)

Ans 10:

ansh rai from delhi public school, Bhilai
Class : Class 4
Answer is a not d

Ans 11:

IAMLOST from ABC, Pune
Class : Class 8

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Swarnavo from Reso, Kota
Subject :NSO    Class : Class 7

Ans 1:

Bhumi Chheda from SVKM J V Parekh International School, Mumbai
Class : Class 9
i am not sure if it is A or C

Ans 2:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
A is the correct answer

Ans 3:

Hritvi from Podar International School, Mumbai
Class : Class 7
Option C is the correct answer as the silvered walls of the thermo flask helps the liquid to sustain its form by reflecting the heat by Radiation (Heat that does not need any medium to travel unlike conduction and convection.)

Ans 4:

shashwat pandey from Doon International School Dalanwala, Dehradun
Class : Class 8
In my opinoin A is corrcect beacuse silvered wall is a solid thing and solid thing get's heat through the process of conduction.

Ans 5:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
A

Ans 6:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
OPTION C IS CORRECT ANSWER.

Ans 7:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
option c

Ans 8:

Soumyajit Roy from Delhi Public School Jamnagar, Jamnagar
Class : Class 9

Ans 9:

Anagha s Karnis from vijaya vittala vidyashala, MYSORE
Class : Class 8
Option c is the correct answer, because if at all any cold material is stored in the flask, then the liquid becomes hot due to the heat of the sun. Hence it is used to reflect the radiation from the sun

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Avinash Mishra from Central Hindu School, Gorakhpur
Subject :NSO    Class : Class 10

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Arav Singh from Jyoti Niketan School, Azamgarh
Subject :NSO    Class : Class 5

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Raghav Tyagi from birla vidya niketan, new delhi
Subject :NSO    Class : Class 8

Ans 1:

Student from School, City
Class : Class 8
Explain with diagram in the solution.

Ans 2:

Jaidev Chowdhary from Shamrock International School, VIJAYAWADA
Class : Class 8

Ans 3:

Paarth Vashistha from Kunskapsskolan Gurgaon , Gurgaon
Class : Class 8
How will the bicycle move if one wheel is moving forward and other backward ?

Ans 4:

Ayush Chauhan from Modern Public School, Bhiwadi
Class : Class 9

Ans 5:

Nilanjana De from Delhi Public School North, Bengaluru
Class : Class 8
Can someone please explain why the answer is A?

Ans 6:

Bipasana from KV IIT Kanpur, Kanpur
Class : Class 9
It IS A.

Ans 7:

AAshutosh Jindal from HOLY angels school, RAJPURA
Class : Class 8
D

Ans 8:

AAshutosh Jindal from HOLY angels school, RAJPURA
Class : Class 8
D

Ans 9:

Venya from CHIREC International, Hyderabad
Class : Class 9
I don't understand how it is A. Both the wheels move in the same direction. It can't be C as the wheels are moving in the forward direction hence it is none of the above.

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SOMDATTA BHATTACHARYA from Delhi Public School, Dhaligaon, Bongaigaon
Subject :NSO    Class : Class 4

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Arundhathi from NATIONAL PUBLIC SCHOOL, CHENNAI
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Yes!!

Ans 2:

Himanshu Tiwari from Billabong High International School, Bhopal
Class : Class 4
Yes they do.

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Pranesh Sathish Kumar from Diya Academy of learning, Bengaluru
Subject :NSO    Class : Class 7

Ans 1:

Ashwin Shridhar from Vidyashilp Academy, Bangalore
Class : Class 9
R

Ans 2:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
I will go with A

Ans 3:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
I will go with A

Ans 4:

Ved prajapati from Adani Vidya Mandir , Ahmedabad
Class : Class 8
(a)p

Ans 5:

Ritesh Narayan Das from Adamas International School, Kolkata
Class : Class 10
R

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ADITHI M from NARAYANA E TECHNO SCHOOL, BANGALORE
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B. The pattern is in increasing powers of 5.

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SUBRATA MUKHERJEE from ,
Subject :NSO    Class : Class 8

Ans 1:

PARTH JAIN from DPS INDIRAPURAM, GHAZIABAD
Class : Class 8

Ans 2: (Master Answer)

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

Ans 3:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7

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