National Science Olympiad Forum By SOF Olympiad Trainer - Page 641
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Mannat Verma from Vivek High School , Chandigarh
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
C

Ans 3:

Brinda Modi from Orchids International School, Pune
Class : Class 6
C for sure

Ans 4:

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

Ans 5:

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

Ans 6:

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

Ans 7: (Master Answer)

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

Post Your Answer

Mannat Verma from Vivek High School , Chandigarh
Subject :NSO    Class : Class 4

Ans 1:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 2
Augustine is correct.

Ans 2:

Augustine from , coimbatore
Class : Class 6
THE ANSWER IS C BECAUSE BY INCREASING THE TILT OF THE TRAY, THE WATER FLOWS FAST AND ERODES THE SOIL MORE

Ans 3:

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

Post Your Answer

Ethel shiju from National Public School Indiranagar, Bangalore
Subject :NSO    Class : Class 8

Ans 1:

Dhanishta Kashyap from Gaur international School, Noida
Class : Class 3

Ans 2:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
IT IS D!

Ans 3: (Master Answer)

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

Ans 4:

Aditya Soni from Saint Xavier School, hariyana
Class : Class 8

Ans 5:

Sainyam Sharma from Thakur Public School, Mumbai
Class : Class 8
D

Ans 6:

Jeevika Jeeth Vijayakar from HFS, Thane
Class : Class 9
d is correct

Ans 7:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
no it can not be option d as temperature has no effect on frequency. Wheather temperature increases or decreases frequency remains unchanged. So, the answer could be either time period or frequency.

Ans 8:

Student from School, City
Class : Class 8
It should be answer D. If wavelength changes, frequency and time period will also change.

Ans 9:

Antarik Maity from Bharatiya Vidyabhaban, Kolkata
Class : Class 8
The correct answer should be D. Because temperature of air increases, density decreases and so, frequency of sound increases. But, according to me, it may or may not affect the wavelength, but the time period will definitely decrease. The options are a bit confusing.....

Ans 10:

Rakshit Mittal from Atomic energy central school 4, Mumbai
Class : Class 10
yeah, the answer is d

Ans 11:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7

Ans 12:

aditya arora from Heritage Experiential Learning School, gurugram
Class : Class 8
d

Ans 13:

sk from psbb millennium school, Chennai
Class : Class 9

Ans 14:

arnav ghatti from mount saint marys, NEW DELHI
Class : Class 6

Ans 15:

Satvik Mehta from St Andrews school Bowenpally, Secunderabad
Class : Class 4

Ans 16:

Satvik Mehta from St Andrews school Bowenpally, Secunderabad
Class : Class 4

Ans 17:

Akshara from NPS, Bengaluru
Class : Class 8
The answer is D. If wavelength changes , then frequency and time period will also change. Wavelength is inversely propotional to frequency and directly propotional to time period.

Ans 18:

Het Aryan from Podar International School , Pune
Class : Class 9

Post Your Answer

Rushil Dubey from Acharyakulam, Haridvar
Subject :NSO    Class : Class 7

Ans 1:

swagata ganguly from WWA COSSIPORE ENGLISH SCHOOL, KOLKATA
Class : Class 7
i wiil go with c

Ans 2:

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

Ans 3:

Shriyam from Chinmaya vidyalaya Bokaro, Bokaro
Class : Class 7
Answer is C

Post Your Answer

Khushi singh from Presidium dwarka 22, Dwarka
Subject :NSO    Class : Class 7

Ans 1:

Hritvi from Podar International School, Mumbai
Class : Class 7
A is the right option

Ans 2:

Dhruvan G from Indian School Al Ghubra, Muscat
Class : Class 8
It's (A) as evaporation causes cooling.

Post Your Answer

Mannat Verma from Vivek High School , Chandigarh
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

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

Ans 2:

Ajoy Bhuyan from DELHI PUBLIC SCHOOL, Bongaigaon
Class : Class 4

Ans 3:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 2
B😰

Ans 4:

Ajoy Bhuyan from DELHI PUBLIC SCHOOL, Bongaigaon
Class : Class 4
ADMIN

Ans 5:

Ajoy Bhuyan from DELHI PUBLIC SCHOOL, Bongaigaon
Class : Class 4

Ans 6:

Sourish Mahakul from Delhi Public School Electronic City, Bengaluru
Class : Class 8
correct ans is b

Ans 7:

Nishit Vaity from Euro School Airoli, Navi Mumbai
Class : Class 6

Post Your Answer

Girish Jayan from National centre for excellence, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Aadhira from velammal new gen school, Medavakkam, Chennai
Class : Class 6
The answer is (c)

Ans 2:

Shivangi from GEA, Mumbai
Class : Class 7
c

Ans 3:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 10

Ans 4:

Anay Misra from DPS Sector-122 Noida, Noida
Class : Class 6

Ans 5:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
c

Ans 6:

Girish Jayan from National centre for excellence, Bengaluru
Class : Class 5
http://www.sofolympiadtrainer.com/user/endTest/resultReport

Post Your Answer

Pranav Kannan from Phoenix Greens, Hyderabad
Subject :NSO    Class : Class 3

Ans 1:

Eklavya Gondule from DPS Bhilai, BHILAI
Class : Class 7
w4aestdryuvghibj

Ans 2:

Pranav Kannan from Phoenix Greens, Hyderabad
Class : Class 3

Post Your Answer

Aneesh Rajput from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Subject :NSO    Class : Class 4

Ans 1:

shreyansh2010 from Prudence, New Delhi
Class : Class 7
Answer D look like correct too

Ans 2:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Answer C is correct because Red and Blue light are absorbed and used for Photosynthesis . But in D it is written Green light is reflected ( correct ) but is used for Photosynthesis ( incorrect )

Ans 3: (Master Answer)

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

Ans 4:

sanjana from NARAYANA E TECHNO , Chennai
Class : Class 8

Ans 5:

Anushtubh Ashish Sonawane from Blue Ridge Public School, Pune
Class : Class 5
howwwwwwwww pls 4my sanity tell me

Ans 6:

vineet8026@gmail.com from dps, Doha
Class : Class 1
Thanks for the answer. ......

Ans 7:

vineet8026@gmail.com from dps, Doha
Class : Class 1
How???????

Ans 8:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Pls explainI agree with shreyansh2010

Ans 9:

Siddharth Laxmisha from The Study Lecole Internationale, PUDUCHERRY
Class : Class 8
No, Answer D is not correct. They are talking about red, blue, and green lights not red, blue, and green pigments in a leaf. Red and blue lights are efficient in photosynthesizing and the green pigment is also efficient in photosynthesizing. Here, they are talking about lights, not pigments in a leaf.

Ans 10:

shreyansh2010 from Prudence, New Delhi
Class : Class 7
Got it as green color reflected thus will not be used for photosynthesis

Ans 11:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10
But what is the explanation?

Ans 12:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
What????!!How?????!!!Please answer!!

Post Your Answer

Rikhil Gupta from Christ Academy, Bengaluru
Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

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

Ans 2:

from kv2, kalpakkam
Class : Class 9
i have got C

Ans 3:

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

Post Your Answer