National Science Olympiad Forum By SOF Olympiad Trainer - Page 638
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ADITYA KUMAR from CSDAV PUBLIC SCHOOL, MOTIHARI
Subject :NSO    Class : Class 9

Ans 1:

Aditi Agrawal from Sunbeam School Bhagwanpur, VARANASI
Class : Class 9
next time

Ans 2:

Manvi Singh from Kendriya Vidyalaya Picket, Secunderabad
Class : Class 10
z/(x-y) = 32/19 is not among the option of elements given.

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ADITYA KUMAR from CSDAV PUBLIC SCHOOL, MOTIHARI
Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

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

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ADITYA KUMAR from CSDAV PUBLIC SCHOOL, MOTIHARI
Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

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

Ans 2:

harnoor from cambridge international school, nawanshahr
Class : Class 9
pay attention to sum of their digits

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ADITYA KUMAR from CSDAV PUBLIC SCHOOL, MOTIHARI
Subject :NSO    Class : Class 9

Ans 1:

Ridhi Maheshwari from NLDHS, Mumbai
Class : Class 9
Can u pls send the method

Ans 2:

Rohan from kennedy high the global school, HYDERABAD
Class : Class 9
9.6

Ans 3:

Gireesha from innocent hearts school jalandhar, Jalandhar
Class : Class 10

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ADITYA KUMAR from CSDAV PUBLIC SCHOOL, MOTIHARI
Subject :NSO    Class : Class 9

Ans 1:

Nirmal joshi from New Beersheba, Pithoragarh
Class : Class 9
The answer is 12cm

Ans 2:

abhijeet mishra from bhubaneswar model public school, bhubaneswar
Class : Class 10
the answer is 12 cm

Ans 3:

Nirmal joshi from New Beersheba, Pithoragarh
Class : Class 9
The answer is 12cm

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Mrinal garg from St. Joseph's Convent senior secondary school, Bathinda
Subject :NSO    Class : Class 8

Ans 1:

Srikar from SSRVM, Bangalore
Class : Class 9
glass rod when rubbed with fur, it gives electrons to fur and becomes positively charged

Ans 2:

Sainyam Sharma from Thakur Public School, Mumbai
Class : Class 8
positive charge is acqired

Ans 3:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
The options given here are a plastic scale,a woollen cloth, an inflated balloon and a COPPER rod, not a GLASS rod. How can the options appear differently for others, since many people here are saying that there is glass rod involved? Also, plastic is an insulator of electricity, so ideally it wouldn't acquire any charge, right? SOF should give a solution to this problem.

Ans 4:

Ethel shiju from National Public School Indiranagar, Bangalore
Class : Class 9
When rubbed with fur, glass will become negatively charged. However if silk is used instead of fur, glass will acquire a positive charge.

Ans 5:

Aham from vibgyor high, Bangalore
Class : Class 8
This is wrong, yet nothing has been done to fix it. It has been discovered to be wrong FOUR YEARS ago!

Ans 6:

meghna from Asan Memorial Senior secondary school, Chennai
Class : Class 4

Ans 7:

Akshara from NPS, Bengaluru
Class : Class 8
Answer is A... positive charge is acquire by the glass rod

Ans 8:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8
Plastic is unable to be charged.. Wrong answer!

Ans 9:

The Address from Somaiya, Mumbai
Class : Class 6

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Siddharth Mahesh from mdav public school , Hyderabad
Subject :NSO    Class : Class 8

Ans 1:

ANIKA SHUKLA from UDGAM SCHOOL FOR CHILDREN, AHMEDABAD
Class : Class 10
Protons don't move.

Ans 2:

ANIKA SHUKLA from UDGAM SCHOOL FOR CHILDREN, AHMEDABAD
Class : Class 10

Ans 3:

Aryaman Neb from Tagore International School, New Delhi
Class : Class 5
Why

Ans 4: (Master Answer)

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

Ans 5:

ANIKA SHUKLA from UDGAM SCHOOL FOR CHILDREN, AHMEDABAD
Class : Class 10

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Shivangi from St. Michael's High School, Patna
Subject :NSO    Class : Class 5

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
It should be option C. It should be discouraged.

Ans 2:

sai ramakrishna GUDIMETLA  from AMM MATRICULATION HIGHER SECONDARY SCHOOL, Chennai
Class : Class 5
D

Ans 3:

sai ramakrishna GUDIMETLA  from AMM MATRICULATION HIGHER SECONDARY SCHOOL, Chennai
Class : Class 5
D

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from , Kolkata
Subject :NSO    Class : Class 4

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Anvesh from navy Children school, mumbai
Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

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

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