National Science Olympiad Forum By SOF Olympiad Trainer - Page 701
  1. Home
  2. /  Forum

User Forum

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

Ans 1:

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

Ans 2:

Harshdeep roy from Bhavans School , Nagpur
Class : Class 7

Ans 3:

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

Ans 4:

Harshdeep roy from Bhavans School , Nagpur
Class : Class 7

Ans 5:

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

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

Ans 8:

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

Ans 9:

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

Post Your Answer

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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

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

Post Your Answer

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

Ans 1:

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

Ans 2:

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 3:

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 4:

Keshav Gupta from Prarambhika, Patna
Class : Class 6
B

Ans 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

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 9:

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

Ans 10:

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

Post Your Answer

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

Ans 1:

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

Ans 2:

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 .

Ans 3:

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

Ans 4:

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

Ans 5:

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

Ans 6: (Master Answer)

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

Ans 7:

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 8:

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

Ans 9:

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

Ans 10:

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.

Post Your Answer

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

Ans 1:

Asutosh Dash from DPS ecity, Bengaluru
Class : Class 5
D

Post Your Answer

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

Post Your Answer

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.

Post Your Answer

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

Post Your Answer

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

Ans 1:

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

Post Your Answer

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

Ans 1: (Master Answer)

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

Post Your Answer