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

Ans 1:

S Malhotra from SFS , New Delhi
Class : Class 5

Ans 2:

Vighnesh from DYPIS, Navi Mumbai
Class : Class 3

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Bidyashree Panda from Royal Concord International School Begur, Bangalore
Subject :NSO    Class : Class 4

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Rudra from VSPK international school sec -13 Rohini Delhi, Delhi
Subject :NSO    Class : Class 8

Ans 1:

Tay Wen Xuan from Inspiros International School, SHAH ALAM
Class : Class 9
Please explain what NA is... I don't understand

Ans 2:

Ruchi Sinha from DPS Gurgaon , Gurgaon
Class : Class 8
NA? what is the explanation of the answer

Ans 3:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7
what does NA mean?

Ans 4:

Ruchi Sinha from DPS Gurgaon , Gurgaon
Class : Class 8

Ans 5:

AANYA BARANWAL from KPS SCHOOL, bhilai
Class : Class 5
NA means no answer but what we had to do with it

Ans 6:

Mridul Vashisht from St. Kabir Public School, Chandigarh
Class : Class 8
Woah how are the marks out of 60 then. People have already attempted this paper in the given year. This means an error in the paper was there that wasn't rectified...

Ans 7:

Saanvi from Dehli Public School , Gurugram
Class : Class 4

Ans 8:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7

Ans 9:

Karthik Rao Varam from Bala Vidya Mandir, Chennai
Class : Class 10

Ans 10:

Ashvik Banerjee from Mount Litera Zee School , Vasco
Class : Class 9
What 'NA' ? The question itself is incorrect

Ans 11:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
NA means 'No Answer'.But the guidelines clearly state 'Mark all questions.'How is this fair?

Ans 12:

Het Aryan from Podar International School , Pune
Class : Class 9
What the heck is going on.

Ans 13:

Akshara from NPS, Bengaluru
Class : Class 8
Arrows are marked wrongly...I dont think these mistakes will ever get rectified considering that people have been writing in this forum, for the past two years, for this question. please look into this sof🙂

Ans 14:

SUHANI PANDA from DE PAUL SCHOOL, BERHAMPUR
Class : Class 8
What do you mean by 'NA'?

Ans 15:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7
if there is no answer,then why was it considered wrong?it is not fair.

Ans 16:

Jayadeep Shanmugam from Sri Sri Ravishankar Vidya Mandir, Bangalore
Class : Class 8
Please give the answer to this Question.

Ans 17:

Mani Gupta from Carmel Convent School, Faridabad
Class : Class 9
Please explain the answer

Ans 18:

Naveen Kumar from Gail DAV Public School, Dibiyapur
Class : Class 8
PLEASE GIVE THE ANSWER ALONG WITH EXPLANTION

Ans 19:

Suvan Shee from Chirec public school, Hyderabad
Class : Class 9
"NA"?.please explain the answer

Ans 20:

Karthik Rao Varam from Bala Vidya Mandir, Chennai
Class : Class 10

Ans 21:

Akshara from NPS, Bengaluru
Class : Class 8
Yes , NA means 'no answer' So , since there is no such option , anything we pick would be incorrect.

Ans 22:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
EXPLAIN THIS PLEASEQuestion is incorrect but even after 30 (31) posts and queries no corrections...

Ans 23:

Ankit kumar Jha from Ryan International School , Ghaziabad
Class : Class 9
NA meant no answer is correct and we had to leave this one empty

Ans 24:

Anshuman D from MVM, Hyderabad
Class : Class 9
I understood that when I looked at the question itselfThe arrows are wrongly labelled

Ans 25:

HELEN ELDHO from MAR ATHANASIUS, KOOVAPPADY
Class : Class 9
why no reply...

Ans 26:

Avanish Pandey from St Francis school , Bilaspur
Class : Class 9
The correct answer will be(a)

Ans 27:

Avanish Pandey from St Francis school , Bilaspur
Class : Class 9

Ans 28:

Nipun Abhilash from National Public School, Banashankhari, Bangalore
Class : Class 9

Ans 29:

Abhijit from saint raphael h.s. school, indore
Class : Class 6

Ans 30:

AKSHAJ SRIVASTAVA from MOUNT LITERA ZEE SCHOOL, Kanpur
Class : Class 9
None of the given options are correct...

Ans 31:

Akshara from NPS, Bengaluru
Class : Class 8
Exactly.What does NA mean ??

Ans 32:

Aniket Kumar from Gyan Niketan, Patna
Class : Class 8

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

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Abhay Agarwal from St Francis School, Ghaziabad
Subject :NSO    Class : Class 8

Ans 1:

Darsh Singh from DAV, Talcher
Class : Class 9
Yes, it should be 33m as distance for an echo = s x t/2

Ans 2:

Bhramana Roy from Glendale Academy International, Hyderabad
Class : Class 8
Time taken to utter single syllable=1/5th of a sSpeed of sound in air=330m s^-1 or 330m/sso distance to reflecting surface=1/5 * 330 as that will give the distance=66.0mSo, distance to reflecting surface is 66.0m

Ans 3:

Prisha Hemchandra Lokhande from NPS Whitefield, Bangalore, Bangalore
Class : Class 8
Is the question wrong...? the answer should be 33.0 m as speed=2d/t

Ans 4:

Nilanjana De from Delhi Public School North, Bengaluru
Class : Class 8
Can someone please explain this question?

Ans 5:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7
answer??????????????????????????????????????????????????????

Ans 6:

Kabir Kaushik from Elpro International School, Pune
Class : Class 8
Yes I think it is 33 also because it says it is an echo

Ans 7:

Akhil Budithi from Kennedy high the global school , Hyderabad
Class : Class 8
please explain this question.

Ans 8:

Abhay Agarwal from St Francis School, Ghaziabad
Class : Class 9
please explain this question

Ans 9:

Ansuman Mohanty from O.D.M.Plubic School, Bhubaneswar
Class : Class 9

Ans 10:

vatsal jay gandhi from new era senior secondary school, Vadodara
Class : Class 8
please explain this question.

Ans 11:

Abhay Agarwal from St Francis School, Ghaziabad
Class : Class 9

Post Your Answer

SAYAN MONDAL from BURDWAN CMS HIGH SCHOOL, BURDWAN
Subject :NSO    Class : Class 4

Ans 1:

Krish Karthik from freedom international school, Bangalore
Class : Class 5
but frog dosnt have just 3 life stages it has 4 so its not the answer

Ans 2:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 9

Ans 3:

Shreshta from Presidium, Ghaziabad
Class : Class 3
The answer which is given in the SOF application is wrong, because a frog has four life stages in his life stages, the correct answer must be moth because it has only three life stages in his life cycle and the parent and child do not look same,

Ans 4:

Manan thorat from Podar powai, Mumbai
Class : Class 4
Frog has 4 stages any of the answers are not correct

Ans 5:

Kishore Kadiyala from NPS, BANGALORE
Class : Class 5
the answer is d as the mosquito does not look like the parent , has 3 stages of life and lays eggs while frog does not look like the adult , has 4 stages of life and lays eggs .

Ans 6:

Nakul Bhasker from National Public School Whitefield, Bangalore
Class : Class 5
THE ANSWER IS D AS FROG HAS 4 STAGES IN IT'S LIFE CYCLE ,BUT DOES NOT LOOK LIKE IT'S PARENT.WHILE,MOSQUITO HAS THREE SYTAGES IN IT'S LIFE CYCLE AND DOES NOT LOOK LIKE IT'S PARENT.I MADE THE SAME MISTAKE IN THE PREVIOUS TEST

Ans 7:

Kishore Kadiyala from NPS, BANGALORE
Class : Class 5

Ans 8:

Harsh Sobti from the samhita academy, BLR
Class : Class 5

Ans 9:

Rishita Sivakumar from Indian High School, Karama Dubai
Class : Class 9

Ans 10:

Nishchita from Gems Modern Academy , Dubai
Class : Class 8
The correct answer is C

Ans 11:

Krishna Kumari Nayak from Sai International school , Bhubaneswar
Class : Class 4
It is option B

Ans 12:

Akshat Pathak from DPS, Noida
Class : Class 4
correct answer is D

Ans 13:

Rishita Sivakumar from Indian High School, Karama Dubai
Class : Class 9
the answer is d

Ans 14:

Mihika Talukdar from GARDEN HIGH, KOLKATA
Class : Class 4

Post Your Answer

Chiranjib kar from MOUNT LITERA ZEE SCHOOL, JAJPUR
Subject :NSO    Class : Class 5

Ans 1:

Ajitesh Mishra from Vikas the concept school, Hyderabad
Class : Class 5
ANS A

Ans 2:

S A ANIRUDH from S B O A SCHOOL AND JUNIOR COLLEGE, CHENNAI
Class : Class 5
Answer is C

Ans 3:

Bhavya from ABC, Delhi
Class : Class 7
super easy answer. it is 'A'

Ans 4:

Swastik Srivastava from Baldwin Boys High School, Bangalore
Class : Class 5
ans is B

Post Your Answer

Chiranjib kar from MOUNT LITERA ZEE SCHOOL, JAJPUR
Subject :NSO    Class : Class 5

Ans 1:

Ayushree Barman from Sri Sri Academy, Kolkata
Class : Class 6
Where is the question? Isn't it very vague?

Ans 2:

Shreetej from Pearson public school, Pune
Class : Class 5
where is the question???????????????????????????

Ans 3:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
The question is in the solution please check

Ans 4:

Swastik Srivastava from Baldwin Boys High School, Bangalore
Class : Class 5
where is the question ??????????????????

Ans 5:

Prisha Shah from Euroschool Airoli, Mumbai
Class : Class 6
If they don't give the complete question, we all will get it wrongSOF please look into this matter

Ans 6:

Siddhanth Subramanian from Global Indian International School , Singapore
Class : Class 7
question????????????????

Ans 7:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4

Ans 8:

Pratham Dave from GNS, Bangalore
Class : Class 7
No question?????????????????????????????

Ans 9:

SUARGHYA CHATTERJEE from INDIA INTERNATIONAL SCHOOL, asansol
Class : Class 5
WHERE IS THE QUESTION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!??????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!???????????????????????????

Ans 10:

Shreyasi Padihary from National Public School East, Bengaluru
Class : Class 7
There is no question. What are we supposed to answer. It is incomplete

Ans 11:

Chandradeep Kumar from ,
Class : Class 5

Ans 12:

Kavin Karthick M from DPS bangalore east, Bengaluru
Class : Class 6
there is no proper question?

Ans 13:

Etash M B from Sri Sri Ravi Shankar Vidya Mandir, Bengaluru
Class : Class 5
where the h

Ans 14:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
report error

Ans 15:

Mishika shah from little angels high school, gwalior
Class : Class 9
The question is there in the solution please check

Ans 16:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9
No relevant question

Ans 17:

Malav patel from Navrachana school sama , Vadodara
Class : Class 5

Ans 18:

Shaanvi from ,
Class : Class 5
wrong question, incompleted question!!!!!!!!!!!!!????

Ans 19:

Shreyan from Delhi Public School Bangalore East, Bangalore
Class : Class 5
what.

Ans 20:

Dushyant Singh from Shri Ram Centennial School, Indore
Class : Class 6
see the solution the question is how many kharif crops are there. there are 6.

Ans 21:

Suvanjot Kaur from Springdale Senior School, Amritsar
Class : Class 5
The question is incomplete

Ans 22:

Arnav kaul from Chirec, Hyderabad
Class : Class 2

Ans 23:

Dushyant Singh from Shri Ram Centennial School, Indore
Class : Class 6
no question.report error please

Ans 24:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 25:

Souradeepto Das Mandal from Hyderabad Public School, Hyderabad
Class : Class 7

Ans 26:

Ashwak from Cambridge, Jalandhar
Class : Class 9
question is incomplete

Ans 27:

kushaal srinandan reddy bandi from bhartiya vidya bhavans public school vidhyasharam jublee hills , HYDERABAD
Class : Class 6
this is not a question

Ans 28:

Jasmine Kaur from Venkateshwar International School , New Delhi
Class : Class 5
There is no question!

Ans 29:

Dushyant Singh from Shri Ram Centennial School, Indore
Class : Class 6

Ans 30:

Aditi DasBidhar from Treamis World School, Bengaluru
Class : Class 6
Where is the question!?

Ans 31:

sarah pranav gothivarekar from Indian School Al Gubra, Muscat
Class : Class 4
where is the questionnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Ans 32:

marika from VTS, Mumbai
Class : Class 4
There is no question and when I reported that error, it just came as "invalid"

Ans 33:

Samyuktha from Sri Chaitanya, Chennai
Class : Class 7
they did not give the question .

Ans 34:

Prisha Shah from Euroschool Airoli, Mumbai
Class : Class 6

Ans 35:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
What is the question?????????????????????????????????

Ans 36:

Kashvi Rawat from Gear Innovative International School, Bengaluru
Class : Class 3
no question!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 37:

Reynah Gupta from The Shri Ram School, Aravali, Gurugram
Class : Class 10
question is incomplete

Post Your Answer

Shreenath Rajesh Nair from J H A S V Surat, Surat
Subject :NSO    Class : Class 8

Ans 1:

S V Harini from Vailankanni public school , Krishnagiri
Class : Class 8
explain please....

Ans 2:

Shaman Amin from SDM school, Mangalore
Class : Class 10
But wont the refraction of light in water play a role?

Ans 3:

Khushi Chaudhuri from Step By step, Noida
Class : Class 8
Why does the deviation happen to be 180 degrees

Ans 4:

NAMAN HARITASH from DPS DLF CITY, GURGAON
Class : Class 9
but due to water refraction will also take place

Ans 5:

neelu desai from bombay scottish, mumbai
Class : Class 8

Ans 6:

Rahul Jha from Delhi Public School BN, Bengaluru
Class : Class 8
Key Idea: Phenomenon of reflection is independent of medium. The deviation produced by combination of two plane mirrors is δ=2π−2θ =2π−2×π2 (θ=90o) ⇒ δ=π=180o. Hence, total deviation in incident ray is180o

Ans 7:

vrrsekar from INDIAN SCHOOL SUR OMAN, sur
Class : Class 6
Thank You Mr.Rahul

Ans 8:

ANUSHKA SHARMA from CAMBRIDGE COURT WORLD SCHOOL, JAIPUR
Class : Class 8
Please explain how the deviation has happened at 180 degrees

Post Your Answer

H R Kanish from Chennai public school, Chennai
Subject :NSO    Class : Class 6

Ans 1:

Ayush malik from JAI KRAISHANA INTERNATIONAL SCHOOL, Rohtak
Class : Class 6
D

Ans 2:

Alyassa Pradhan from St Josephs Convent Higher Secondary School, Sambalpur
Class : Class 4
D

Ans 3:

Advait talnikar from Dhruv Global School, Sangamner
Class : Class 6
Answer can be A

Ans 4:

Kushal from Chirec, Hyderabad
Class : Class 7

Post Your Answer