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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

neelu desai from bombay scottish, mumbai
Class : Class 8

Ans 5:

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 6:

Shaman Amin from SDM school, Mangalore
Class : Class 9
But wont the refraction of light in water play a role?

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

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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

Kushal from Chirec, Hyderabad
Class : Class 7

Post Your Answer

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

Ans 1:

SUSHEELA KAMLENDRA from FLORENCE ACADEMY, BENGALURU
Class : Class 6

Ans 2:

Kushal from Chirec, Hyderabad
Class : Class 7

Ans 3:

Aayush Reddy Bomidika from Delhi Public School Nacharam, Hyderabad
Class : Class 9
D is definitely the correct answer

Ans 4:

Naitik Mundra from International School Rheintal, Buchs Sankt Gallen
Class : Class 9
Answer is B

Ans 5:

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

Ans 6:

Aarav Srivastav from DWPS , Noida Extension
Class : Class 7

Ans 7:

BHAVYA JHA from GLOBAL CITY INTERNATIONAL SCHOOL, BANGALORE
Class : Class 6
According to me D is the correct answer

Ans 8:

Shourya Kumar from Delhi Public School Noida, Noida
Class : Class 9

Ans 9:

Subhang Deep Sahu from Chrysalis High Kadugodi . , Bangalore
Class : Class 7

Ans 10:

Pranav Kartik from DPS sushant lok , Gurgaon
Class : Class 3
D is the correct answer

Ans 11:

PS Gour from Chirec international schoo The best 30 years and beyond, Hyderabad
Class : Class 7
according to me D is correct

Ans 12:

Ashi Goyal from Sacred heart convent school,raikot road,barnala, punjab
Class : Class 6

Ans 13:

Kshitij from Sams, Bangalore
Class : Class 6
pls explain how the answer is bBTW: your answer is correct

Ans 14:

Naitik Mundra from International School Rheintal, Buchs Sankt Gallen
Class : Class 9
When a battery is constructed such that all the positive terminal of the cells are connected to a same point and all the negative terminals of the cells are connected to another point then the grouping of cells in this manner is called the Parallel Grouping of cells. The two end terminals of the construct where all the positive and negative terminals of the cells are connected act as the corresponding terminal of the battery.

Ans 15:

Pranjal Chaudhari from St Aloysius Convent High School, Bhusawal
Class : Class 6
pls explain how the answer is B

Ans 16:

Aarav Srivastav from DWPS , Noida Extension
Class : Class 7

Ans 17:

SOURADEEP SHARMILA MANDAL from KENDRIYA VIDYALAYA IISC, Bengaluru
Class : Class 7

Ans 18:

Smita De from Bishop Cotton Girls School, BANGALORE
Class : Class 6

Ans 19:

Shantaneel Sarkar from Delhi Public School, Nagpur
Class : Class 6
According to me D is the correct answer as a wire should be connected from a terminal of a battery to the - terminal of the battery for longer stay of electric circuit, and this rule is satisfied by the circuit shown in option D.

Ans 20:

Hemanshu VM from Sri Kumaran Public School, Bangalore
Class : Class 6
the answer is D

Ans 21:

SJ HARITHA from PSNLO, BENGALURU
Class : Class 10

Ans 22:

Kaustav Bhowal from Julien Day School, Kolkata
Class : Class 10
D is the correct answer.

Ans 23:

Harsh Kedawat from Apeejay, Noida
Class : Class 8
pls explain how the answer is B

Ans 24:

MAHI ABHIJIT CHAUDHARI from Sentia The Global School, HYDERABAD
Class : Class 6
Answer B is the correct answer as the question specified for the arrangement which will allow the bulb to stay lighted for the longest possible time. Option B is connected as One cell as per the circuit (all connections are in parallel), While Option D is in Series (in case of failure of one cell, the circuit will not work as the current will not pass through the cell)

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Pranjal Chaudhari from St Aloysius Convent High School, Bhusawal
Subject :NSO    Class : Class 6

Read the given statements and select the correct option.
Statement 1 : Fibres are first spun into yarns, which are then woven or knit into fabrics.
Statement 2 : Weaving is done by interlacing two sets of fibres at right angles on a loom.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true and statement 2 is false.
DBoth statements 1 and 2 are false.


Ans 1:

Parth Kadam from Pawar Public School , Nanded City, Pune
Class : Class 8
The answer is B

Ans 2:

A Ramakrishna Rao from D A V Public School. Unit 8. Bhubaneswar , Bhubaneswar
Class : Class 6
the correct answer is c as it is given weaving fibres not weaving yarn.read the question carefully.

Ans 3:

Sarah Ishika Dowerah from Delhi Public School, Numaligarh
Class : Class 8

Ans 4:

Kaushik Bhattacharya from LVIS, NOIDA
Class : Class 7
There seems to be an error in this. We feel that it is B

Ans 5:

Pratheek from Null, Null
Class : Class 4
It is C!!!!! Be careful!!!!!!!!!

Ans 6:

anika from St Joseph sen sec school Mahoba, Kulpahar
Class : Class 5
its an error as weaving is done as sam eas decribed in statement 2 i think answer should be ...............BBBBB......................

Ans 7:

Ishita Pandey from The Samhita academy, Bengaluru
Class : Class 7
I agree with A Ramakrishna's point

Ans 8:

Aarav Malviya from INDIAN SCHOOL SALALAH, SALALAH
Class : Class 7
thanks for the answer

Ans 9:

ttraj from KV IIT, Chennai, Chennai
Class : Class 3
Answer is C. As you can't weave fibres.read the question properly!!!!!!!!!!!!!!!

Ans 10:

Nandini from Ins, Pune
Class : Class 8

Ans 11:

Pranav Kartik from DPS sushant lok , Gurgaon
Class : Class 3
It is C only!!!

Ans 12:

AUSTIN from Viswajyothi CMI Public School, Chowara
Class : Class 7
the answer is C because YARNS are woven not FIBRES

Ans 13:

Admin fly from Ddssxxx, Ax
Class : Class 1
there is an error. the answer is C

Ans 14:

Aarushi Upadhyayula from The Cambridge International School, Bengaluru
Class : Class 7
The answer would be C. If you read the question carefully, it says, "Weaving is done by interlacing two sets of FIBRES at right angles." There are two things wrong with this: 1) They need not be interlaced at right angles. 2) The question clearly says 'fibres', not 'yarns' as it should be. Therefore, the answer is C.

Ans 15:

Animesh Jain from DPS, Bengaluru
Class : Class 10

Ans 16:

Sarah Ishika Dowerah from Delhi Public School, Numaligarh
Class : Class 8
I think the is option B

Ans 17:

Pragnay Priyadarshi from Quantum Leap School, HYDERABAD
Class : Class 7

Ans 18:

Dheeraj Thriyambak M from Sri Sankara Senior Secondary School Adyar, Chennai
Class : Class 6
Answer is C. ttraj's point is true.

Ans 19:

Aditya Korke from Ekya, Bengaluru
Class : Class 6
Both statements are true

Ans 20:

Ahana Mandal from Delhi Public School Asansol , Asansol
Class : Class 6
Very good and tricky question

Ans 21:

Subhang Deep Sahu from Chrysalis High Kadugodi . , Bangalore
Class : Class 7
it is cccccccccccccccccccccc!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 22:

shrawan azad from DPS VASANTKUNJ NEW DELHI, New Delhi
Class : Class 4
The answer is B

Ans 23:

PRISHA WAGH from G D SOMANI MEMORIAL SCHOOL, MUMBAI
Class : Class 7
answer is B

Ans 24:

AARNA Kapse from The swaminarayan school, Nagpur
Class : Class 7
Ans = C

Ans 25:

nimay gupta from Shiv Nadar School, noida
Class : Class 8

Post Your Answer

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

Post Your Answer

Chaitanya L K from SKCHEC, bangalore
Subject :NSO    Class : Class 7

Ans 1:

Nivriti from Euro, Mumbai
Class : Class 8
ns is C

Ans 2:

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

Ans 3:

Nivriti from Euro, Mumbai
Class : Class 8
ans is c

Ans 4:

Hritvi from Podar International School, Mumbai
Class : Class 7
Bubble pack is a good insulator than a cotton wool.

Ans 5:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
q

Ans 6:

P Easha from Chettinad Vidyashram, Chennai
Class : Class 7
p

Post Your Answer

Chaitanya L K from SKCHEC, bangalore
Subject :NSO    Class : Class 7

Ans 1:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 10
why not statement V is correct ?SOF pls explain

Ans 2:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
c

Ans 3:

shaurya aggarwal from scholars rosary senior secondary school, rohtak
Class : Class 9

Ans 4:

Antareep Mukherjee from New Horizon Public School, Bangalore
Class : Class 7

Ans 5:

shaurya aggarwal from scholars rosary senior secondary school, rohtak
Class : Class 9

Ans 6:

Anshuman D from MVM, Hyderabad
Class : Class 9
Yes it is CQ is female gamete and it does transform into endosperm

Ans 7:

shaurya aggarwal from scholars rosary senior secondary school, rohtak
Class : Class 9

Ans 8:

shaurya aggarwal from scholars rosary senior secondary school, rohtak
Class : Class 9
b is the answer

Ans 9:

Sanidhya Kapoor from Shikshantar, Gurugram
Class : Class 8
it should be C ,since C is the ovule

Post Your Answer

Someone from Nps, Bangalore
Subject :NSO    Class : Class 4

Ans 1:

Pranay patel from DPS east, Bangalore
Class : Class 5
D

Ans 2:

vighneshwar from study hall, Lucknow
Class : Class 5
D

Ans 3:

Someone from Nps, Bangalore
Class : Class 6
D

Ans 4:

Vedang Siddharth Thakare from SMT's Saraswati English Medium School., Thane
Class : Class 4
answer is D

Ans 5:

vighneshwar from study hall, Lucknow
Class : Class 5
D

Ans 6:

Manav from TFS Gunjur, Bengaluru
Class : Class 4
option D

Ans 7:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 10
correct ans in option D

Ans 8:

Sreejani Bhaduri from National Public School, Bangalore
Class : Class 9
HOW🌗🌔🌏🌺🌏🐎🐚🦃🎃🐓🌍🌸🌍🐓🌼🍄🐁🌼🐐😳😳😳😳😳😳😳😳😳😳😳😳😳😳

Ans 9:

Advait Avadhoot Joshi from Arya Gurukul Nandivli, Kalyan
Class : Class 5
Option C is also correct. So students selecting Option C should be awarded 2 marks.

Ans 10:

Vedang Siddharth Thakare from SMT's Saraswati English Medium School., Thane
Class : Class 4
D

Post Your Answer

Pragun goel from Venkateshwar International School, Delhi
Subject :NSO    Class : Class 5

Ans 1:

CHIRAG KHORIA from EVERGREEN PUBLIC SCHOOL, MAYNAGURI
Class : Class 5
b and c is like same or i am wrong

Ans 2:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
b or c will depend on Sun's position which is not mentioned

Ans 3:

Diya Anilkumar from DPS Bangalore North, Bangalore
Class : Class 5
It is not a logical question

Ans 4:

Divyanshi from United international School, Bangalore
Class : Class 6
b or c should be the correct answer when they say it as wrong it is not fair

Ans 5:

Swastik Panda from Orchid International school, Pune
Class : Class 5
They should mention the sun's position in respect to the moon.

Ans 6:

Ahona Baidya from GGIS, Pune
Class : Class 5
According to me they should have told the sun's position

Ans 7:

Shaurya Gote from KV BSF Dantiwada, S K Nagar
Class : Class 5

Ans 8:

Vatsala from DPS, Durg
Class : Class 8

Ans 9:

Pratham Dave from GNS, Bangalore
Class : Class 7
B or C is the answer to this question

Ans 10:

Shaurya Gote from KV BSF Dantiwada, S K Nagar
Class : Class 5

Ans 11:

Ritabrata Das from OPJS, Angul
Class : Class 7

Ans 12:

Vatsala from DPS, Durg
Class : Class 8

Post Your Answer

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

Ans 1:

Karangat house from Navy Children School, Payyannur
Class : Class 3
a a a

Ans 2:

Eklavya Gondule from DPS Bhilai, BHILAI
Class : Class 7

Ans 3:

Aarna gupta from Nps international , Singapore
Class : Class 6

Ans 4:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 7
Very,very,very,very,very,very,very,very tricky

Ans 5:

Shriyansh Tripathy from SAI International School, BHUBANESWAR
Class : Class 3
a

Ans 6:

Nishant Hazarika from Air Force School, Dibrugarh
Class : Class 3
Yes,very tricky indeed.Everybody will write C but the answer will be A

Ans 7:

Adrito Roy from Stem world School, Kolkata
Class : Class 3

Ans 8:

Ashlynn Bhatia from Modern Vidya Niketan Sr. Secondary School Sector - 17, FARIDABAD
Class : Class 4
But according to recent studies during photosynthesis plants take in carbondioxide and release oxygen due to which animals and humans are able to breathe oxygen . So , there i some error in the robotic system of SOF Olympiad Trainer . Even if you chose C but they show the correct answer is A you needn't worry as you can report the error using the button next to the one that opens this chat

Ans 9:

Manya Purohit from Tree house high school, VasaiWest
Class : Class 3
Why a

Ans 10:

Anagh Agrawal from Billabong high, JABALPUR
Class : Class 3
C

Ans 11:

Ashwak from Cambridge, Jalandhar
Class : Class 8
It was a little tricky .

Ans 12:

Vihaan kohli from MVN Aravali, Faridabad
Class : Class 3
a

Ans 13:

Aradhya Shankar from Vibgyor, Kolhapur
Class : Class 5
C

Ans 14:

Havi Jain from GEMS modern academy, Gurgaon
Class : Class 8
A

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