National Science Olympiad Forum By SOF Olympiad Trainer - Page 327
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Vayun from NPS HSR, Bengaluru
Subject :NSO    Class : Class 8

Ans 1:

Student from School, City
Class : Class 8

Ans 2:

Sherlock Holmes from Baker Street, London
Class : Class 9

Ans 3:

Student from School, City
Class : Class 8
Also, B and D can be more musical than A because they change frequently, constituting a pleasant sound, whereas A is a single monotone.

Ans 4:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
This question isn't related to any pleasant or unpleasant sound. Also, if the distance travelled by the sonic vibrations is 2x, time is 2 seconds and speed is 1.5 km/s, the distance= speed*time=1.5*2=3 km. The answer should be 3 km, not 1.5 km. SOF is requested to kindly rectify this error.

Ans 5:

Ayush Pal from GD Goenka Public School Dakshineswar, West Bengal, India, Kolkata
Class : Class 8

Ans 6:

Student from School, City
Class : Class 8
B and D can also constitute a pleasant sound as they are also similar to A.

Ans 7:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8

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BRahul pillai from Bvm elamakkara , Cochin
Subject :NSO    Class : Class 10

Ans 1:

Janani swethaa from CS ACADEMY, Erode
Class : Class 10

Ans 2:

Janani swethaa from CS ACADEMY, Erode
Class : Class 10
It is wrong. Answer is D

Ans 3:

Shreyansh Samaddar from St.Xavier High School, Raipur
Class : Class 10
YEAH What is this! Answer should be D!!!!!!! What is this!

Ans 4:

Jayati Gupta from Dps, YAMUNANAGAR
Class : Class 6
Q is a metal and S is a non metal, and therefore Q has a greater chance at losing electrons. The correct option is D.

Ans 5:

BRahul pillai from Bvm elamakkara , Cochin
Class : Class 10
the answer for this question is option D,since Q is more electropositive than s and thus will lose electrons easily .But in the answer key it is given as optionB.

Ans 6:

Anantha Narayanan M S from NPS Goaplapuram Chennai, Chennai
Class : Class 9
The givern answer is wrong!!!!!!!!!

Ans 7:

BRahul pillai from Bvm elamakkara , Cochin
Class : Class 10
what

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JADEN GABRIEL ROY from BISHOP REMIGIUS CBSE SCHOOL, NAGERCOIL
Subject :NSO    Class : Class 5

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Twesh Shreeniwas from DPS, Gurgaon
Subject :NSO    Class : Class 8

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SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH
Subject :NSO    Class : Class 7

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Bhagyesh Kamal from DPS, Mumbai
Subject :NSO    Class : Class 8

Ans 1:

Ishaan Pal from Vibgyor HSR, Bangalore
Class : Class 9
why not b??

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Sanskar Gautam from dps, dadri
Subject :NSO    Class : Class 5

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TejMan from Vel's Vidyashram, Chennai
Subject :NSO    Class : Class 8

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Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Subject :NSO    Class : Class 3

Ans 1:

Shyam Jayesh from Shyam Jayesh, Bangalore
Class : Class 3

Ans 2:

Jdjdjdj from Delhi public school Bangalore east, Bangalore
Class : Class 3
Speed post

Ans 3:

Yatindra G from SBOA, Chennai
Class : Class 4
speed post

Ans 4:

Samarth Arcot Praveen from National Public School Rajajinagar, Bangalore
Class : Class 4
the question framed incorrectly. It should have been sending wedding card at the earliest

Ans 5:

REYANSH RUDRANSHU from DELHI PUBLIC SCHOOL , DAMANJODI
Class : Class 4

Ans 6:

Arjun Bhamare from VIBGYOR HIGH, YERWADA , PUNE
Class : Class 3
the answer seems incorrect. One can send an invitation through all of the available resources. However, if one wants to send invitation speedily, then the option of Speed Post would be more correct.

Ans 7:

Shibani Pal from cghs, Kolkata
Class : Class 3
all of these

Ans 8:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7

Ans 9:

Shyam Jayesh from Shyam Jayesh, Bangalore
Class : Class 3

Ans 10:

Krishiv Chandan Sukul from Seven 11 Scholastic School, Mumbai
Class : Class 6
is all of these.

Ans 11:

Vivaan Joshi from Indira National School, Pune
Class : Class 6

Ans 12:

Sushree snehasikta behera from Mother's public school , Bhubaneswar
Class : Class 2
option a speed post

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Eklavya Gondule from DPS Bhilai, BHILAI
Subject :NSO    Class : Class 7

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