National Science Olympiad Forum By SOF Olympiad Trainer - Page 731
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Rudraksh Tiwari from Kumaon Public School Dwarahat, Almora
Subject :NSO    Class : Class 4

Ans 1:

Ananya Kaushik from DPS Noida, Noida
Class : Class 4

Ans 2:

monisha garg from carmel convent school sector 9 chandigarh, panchkula
Class : Class 4

Ans 3:

Punyatoya from Harvest, Bengaluru
Class : Class 8
2 answers are there🤔🤔

Ans 4:

Ayaansh Singhal from Pinewood School, Saharanpur
Class : Class 8
dear sir please give the explanation of the ans to master ans admin revisewise

Ans 5:

Punyatoya from Harvest, Bengaluru
Class : Class 8
The solution is saying

Ans 6:

Atheeq Ahmed Shaik from Ravindra Bharathi Global School, chennai
Class : Class 6
B

Ans 7:

DHANVI from CAMBRIDGE SCHOOL MANGALORE, MANGALORE
Class : Class 4

Ans 8:

Arjun from dpsnoida, Noida
Class : Class 4
B IS THE CORRET ANSWER YOU BLIND PERSON

Ans 9:

Punyatoya from Harvest, Bengaluru
Class : Class 8
The solution is saying it h

Ans 10: (Master Answer)

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

Ans 11:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 9
Material B allows 500 percent light through it while material C allows 150 percent light so material B allows more light to pass through it than material C.That’s why answer D is correct.😊

Ans 12:

RC from Vibgyor, Navi Mumbai
Class : Class 6

Ans 13:

Alisha from Delhi Public School , bopal, Ahemdabad
Class : Class 8
HOW IS b CORRECT ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Ans 14:

Adhrit from vibgyor high, Mumbai
Class : Class 5

Ans 15:

Madhura Mageshwaran from zurich school, zurich
Class : Class 6
The correct anwer is B.

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ATHARVAA PAUNIPAGAR from VIBGYOR HIGH, GOREGAON, MUMBAI, Mumbai
Subject :NSO    Class : Class 1

Ans 1:

KRISHNARGHYA PRAMANIK from DELHI PUBLIC SCHOOL, MEGACITY, KOLKATA WEST BENGAL
Class : Class 5

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B. The unscrambled word comes out to be HANDPUMP.

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Kush Malpani from Cathedral and John Connon Senior School, Mumbai
Subject :NSO    Class : Class 7

Ans 1:

Harshdeep roy from Bhavans School , Nagpur
Class : Class 7

Ans 2:

Harshdeep roy from Bhavans School , Nagpur
Class : Class 7

Ans 3:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
Answer is the option D

Ans 4:

Pranjal Khaitan from Jayshree Pariwal International School, Jaipur
Class : Class 7
The correct answer is A

Ans 5:

aditya from city pride school , Pune
Class : Class 7
D . because it is constant and in a specific direction

Ans 6:

Harshdeep roy from Bhavans School , Nagpur
Class : Class 7
Answer is option D

Ans 7:

Harshdeep roy from Bhavans School , Nagpur
Class : Class 7
Answer is option D.

Ans 8:

Harshdeep roy from Bhavans School , Nagpur
Class : Class 7

Ans 9:

aditya from city pride school , Pune
Class : Class 7
D . because it is constant and in a specific direction

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Sarika Lalwani from vibgyor, Kolhapur
Subject :NSO    Class : Class 5

Ans 1:

TANVI DAS from GAIL DAV Public School , Dibiyapur
Class : Class 8

Ans 2:

anita from Manan Vidya Ranchi, Ranchi
Class : Class 4
A

Ans 3:

Aryan Sirohi from Mount LItera Zee School, Bangalore
Class : Class 8
The answer is D] Bottle opener

Ans 4:

Mohammed Najl from Credence high school Dubai, Dubai
Class : Class 5
the answer is B

Ans 5:

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

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Rajendra Mishra from Kendriya Vidyalaya, Koliwada, Kane Nagar, Mumbai
Subject :NSO    Class : Class 6

Ans 1:

Ahmed Feroz Khan from Jankidevi Public School, Mumbai
Class : Class 5
Because iron fillings and sand can be separated as iron is heavier than sand.

Ans 2:

PS Gour from Chirec international schoo The best 30 years and beyond, Hyderabad
Class : Class 7
pl answer i think the answer will be(i),(iii) and (iv).please check and tel me if im correct

Ans 3:

Anika Saha from New Town School, KOLKATA
Class : Class 6
B

Ans 4:

KEERTHANA SHIBU from INDIAN SCHOOL GHOUBRA, Oman
Class : Class 7
checked in google sof gave right answer

Ans 5:

Arjun gupta from Dps noida , Noida
Class : Class 7
iron filings and sand can also be separated from winnowing

Ans 6:

Keshav Gupta from Prarambhika, Patna
Class : Class 6
B

Ans 7:

Adithi Keshava from National Center For Excellence , Bangalore
Class : Class 7
No iron fillings and sand are heavy

Ans 8:

SAMPAD BANERJEE from DELHI PUBLIC SCHOOL , BILASPUR
Class : Class 9

Ans 9:

Vihaan Dhondiyal from Delhi public school, BANGALORE
Class : Class 7
The answer is (i) and (iii) because iron filling can be separated by using magnetic separation

Ans 10:

Ahmed Feroz Khan from Jankidevi Public School, Mumbai
Class : Class 5
Even I feel answer should be option 'B'

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Kush Malpani from Cathedral and John Connon Senior School, Mumbai
Subject :NSO    Class : Class 7

Ans 1:

Shravan from Harvest International School , Bangalore
Class : Class 9
I think it should be all of the above, even concave mirror shows lateral inversion.

Ans 2:

dhairya mittal from vidyashram international school jodhpur, Jodhpur
Class : Class 5

Ans 3:

POORVA MEHROTRA from STUDY HALL LUCKNOW, Lucknow
Class : Class 8

Ans 4: (Master Answer)

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

Ans 5:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 10
correct ans is option D because when an object is very close to a concave mirror that is on its focal length, the image formed is magnified , virtual, and laterally inverted.

Ans 6:

A Mohammed Yusuf from national acadamy central school , ramnathapuram
Class : Class 7

Ans 7:

Shravan from Harvest International School , Bangalore
Class : Class 9
sorry convex mirror

Ans 8:

Manan Jain from Modern School, Jaipur
Class : Class 8
Why the answer cannot be A and B both i.e. Option D

Ans 9:

POORVA MEHROTRA from STUDY HALL LUCKNOW, Lucknow
Class : Class 8

Ans 10:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
I think it is the option D because when an object is very close to a concave mirror that is its focal length, the image formed is magnified , laterally inverted and virtual .

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ATHARVAA PAUNIPAGAR from VIBGYOR HIGH, GOREGAON, MUMBAI, Mumbai
Subject :NSO    Class : Class 1

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ATHARVAA PAUNIPAGAR from VIBGYOR HIGH, GOREGAON, MUMBAI, Mumbai
Subject :NSO    Class : Class 1

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Vivek from Adarsha vidyalaya, Holenarasipura
Subject :NSO    Class : Class 10

Ans 1:

Rahul Barodia from School of Scholars , Amravati
Class : Class 10
It is because diamonds contain no free electron and hence do not conduct electricity.

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Manish from DPS North Bangalore , Bangalore
Subject :NSO    Class : Class 5

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