National Science Olympiad Forum By SOF Olympiad Trainer - Page 485
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Aaryan from New horizons public school , Mumbai
Subject :NSO    Class : Class 8

Ans 1:

Nilanjana De from Delhi Public School North, Bengaluru
Class : Class 8
The answer is option c

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Priyam Bhattacharya from cambridge court high school, jaipur
Subject :NSO    Class : Class 5

Ans 1:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 7

Ans 2:

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

Ans 3:

SATYA ande from TM Patel International School , Surat
Class : Class 5

Ans 4:

Swarit from Indian School Wadi kabir, Muscat
Class : Class 6
Of the three mediums, sound waves travel the slowest through gases, faster through liquids, and fastest through solids. Sound waves need a medium to pass through. Liquid molecules are not packed as tightly as solids, and gases are very loosely packed. The spacing of the molecules enables sound to travel much faster through a solid than a liquid or a gas. Sound travels about four times faster and farther in water than it does in air. That means the right answer is Option D.i am the smartest guy in sofi have got once international rank 1in level 2

Ans 5:

Revant Singh from Delhi Public School Raipur, Raipur
Class : Class 5
ans 1 i have got 5 times in level 2 and 9 times in level 1

Ans 6:

Aarav Jain from Lodha World School, Thane, Thane
Class : Class 6

Ans 7:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 8:

Mithul Pranav KB from Narayana Olympiad School Madipakkam, Chennai
Class : Class 5

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Harsh Sobti from the samhita academy, BLR
Subject :NSO    Class : Class 4

Ans 1:

somesh from Centre point katol road, Nagpur
Class : Class 6
B

Ans 2:

Priya Kulkarni from Podar international school , Ratnagiri
Class : Class 4
B

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Harsh , the answer is B not A

Ans 4:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
the answer is a a a a a a a a!!!!!!!!!!!!

Ans 5:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 10
option B

Ans 6:

IAMLOST from ABC, Pune
Class : Class 8
option b is the correct answer

Ans 7:

bswarajya from Mount Litera Zee School, Bengaluru
Class : Class 5
B

Ans 8:

Tavish Singh from Sanskriti School, Hyderabad
Class : Class 4
anser ccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 9:

Shreyansh Saha from Dps Megacity, Kolkata
Class : Class 5
The correct Option is b

Ans 10:

vighneshwar from study hall, Lucknow
Class : Class 5
B

Ans 11:

Vidhuran S from Euro School Whitefield, Bangalore
Class : Class 4
a

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Harsh Sobti from the samhita academy, BLR
Subject :NSO    Class : Class 4

Ans 1:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 10
option C

Ans 2:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
snowhite corrrect

Ans 3:

Pragnay Priyadarshi from Quantum Leap School, HYDERABAD
Class : Class 7
c is the right option

Ans 4:

vighneshwar from study hall, Lucknow
Class : Class 5
C

Ans 5:

Riddhiman Bose from Don Bosco School, Kolkata
Class : Class 5

Ans 6:

Subham Halder from Av academy, Kolkata
Class : Class 4

Ans 7:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5

Ans 8:

Ashwak from Cambridge, Jalandhar
Class : Class 9
The answer is A .......

Ans 9:

Shreyansh Saha from Dps Megacity, Kolkata
Class : Class 5
Option c

Ans 10:

UMANG from spring dale college, Lucknow
Class : Class 7
The answer is option A

Ans 11:

shreyash rawat from podar international school, pune
Class : Class 8
the answer is[ A]

Ans 12:

SS from meridian, hyderabad
Class : Class 5
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Karangat house from Navy Children School, Payyannur
Subject :NSO    Class : Class 3

Ans 1:

k tagore from montessori school, KURNOOL
Class : Class 3
question incomplete

Ans 2:

k tagore from montessori school, KURNOOL
Class : Class 3

Ans 3:

Kavya agrawal from OP Jindal school, Raigarh
Class : Class 3
Question in complete

Ans 4:

Saathvik Sriram from euroschool whitefield, Bangalore
Class : Class 5
question is incomplete

Ans 5:

Kavya agrawal from OP Jindal school, Raigarh
Class : Class 3

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Swastik from st marys school, new delhi
Subject :NSO    Class : Class 5

Ans 1:

Riya from Bhavan Vidyalaya, Chandigarh
Class : Class 8
Q should be water salt and P should be pure water

Ans 2:

Anusha from LBS School , Kota
Class : Class 10

Ans 3:

Anvi Ranade from ,
Class : Class 1
Yes. Even I think that sof here has made a mistake . P and Q should be interchanged . I am reporting this as an error

Ans 4:

P A Reyyansh from Ann Mary School, Dehradun
Class : Class 10
dumb SOF

Ans 5:

Kaavyy boolani from Cambridge Court World School, Jaipur
Class : Class 6
correct P and Q in the given picture

Ans 6:

Kaavyy boolani from Cambridge Court World School, Jaipur
Class : Class 6
p should be pure water and q should be impure water so kindly correct the options

Ans 7:

Anusha from LBS School , Kota
Class : Class 10

Ans 8:

Priyam Bhattacharya from cambridge court high school, jaipur
Class : Class 6
yes you are right

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Diti Sharma from Amity International School, Noida
Subject :NSO    Class : Class 8

Ans 1:

khushi Joshi from Svkm , Mumbai
Class : Class 10
But gallium is in solid state at room temperature (20oC)

Ans 2:

arnav raj sharma from gulibulium school, new york
Class : Class 8
gallium is solid before 29.73 so mention the tempereture

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keosha jain from saint francis convent intercollege , jhansi
Subject :NSO    Class : Class 8

Ans 1:

SANVI from D PS VADODARA, Vadodara
Class : Class 9

Ans 2:

Saransh Sharma from St. Anselm's English medium School, Sawai Madhopur
Class : Class 8
In solution it is written B is incorrect then HOW THE OPTION 'B' IS COREECT????

Ans 3:

Archisman Biswas from Santipur Municipal High School, Nadia
Class : Class 9
In the explanation it is given that option b is wrong. Then how does the OPTION B become the right one ?

Ans 4:

Akshara from NPS, Bengaluru
Class : Class 8

Ans 5:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
why does it say b is wrong(and c is correct) in the solution and that b is the correct answer?Isn't it C?

Ans 6:

Saksham Chanani from Sri Sri Academy, Kolkata
Class : Class 9
it says that b is correct and then in soln. it says b is wrong

Ans 7:

ANUSHKA SHARMA from CAMBRIDGE COURT WORLD SCHOOL, JAIPUR
Class : Class 8

Ans 8:

Akhil Budithi from Kennedy high the global school , Hyderabad
Class : Class 8

Ans 9:

Palchin from Naval public school, Uran
Class : Class 8
in the solution it says that option b is wrong then it says that that the correct option is option b please explain

Ans 10:

Akshara from NPS, Bengaluru
Class : Class 8
Completely agree. ????

Ans 11:

Anusha from LBS School , Kota
Class : Class 10

Ans 12:

Naivedya Moondra from Lake Montfort, BANGALORE
Class : Class 8
Yes. Why does it say that?

Ans 13:

Genius Sahaji from BTS Bhopal, BHOPAL
Class : Class 8
me too its written wrong and they are ignoring the reviews and comments and errors

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Aditya Arsh from Virendra Swarup Public School Cantt, Kanpur
Subject :NSO    Class : Class 8

Ans 1:

Lakshya Ajay Kawade from Holy Cross Kapa , Raipur
Class : Class 10
It should be option c

Ans 2:

Lakshmi from DDPS, Kota
Class : Class 8
speed =frequency*wavelength so frequency is inversely proportional to wavelength so if frequency changes the wavelength will also change

Ans 3:

Archi from Mothers Global School, Delhi
Class : Class 10

Ans 4:

neelu desai from bombay scottish, mumbai
Class : Class 8
both 1 and 3 should be answers

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

Ans 1:

Santina Suzanne from owis, bangalore
Class : Class 4
it should be c or d but it tells b

Ans 2:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
B

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