National Science Olympiad Forum By SOF Olympiad Trainer - Page 786
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Aarush from Podar, Mumbai
Subject :NSO    Class : Class 4

Ans 1:

Vimala from Narayana, Bangalore
Class : Class 4

Ans 2:

Adithi Keshava from National Center For Excellence , Bangalore
Class : Class 7

Ans 3:

Vimala from Narayana, Bangalore
Class : Class 4

Post Your Answer

Theertha Uday from Holy Angels ISC School, Trivandrum
Subject :NSO    Class : Class 3

Ans 1:

Nivedita Srikant from St. John's Universal School, Mumbai
Class : Class 3
the boy likes odd and dislikes even numbers

Ans 2:

Admin from Revisewise, Noida
Class : Class 3
Answer: D

Solution ;
The boy likes Odd numbers, so 625 will be the answer, as other three numbers are Even.

Ans 3:

anika from St Joseph sen sec school Mahoba, Kulpahar
Class : Class 5
It seems the boy likes odd numbers and dislikes even numbers so he should like Option D as it is odd.

Post Your Answer

Dhev Arjun from NARAYANA OLYMPIAD SCHOOL, Chennai
Subject :NSO    Class : Class 5

Ans 1:

Sumit G from Greenwood High International, Bengaluru
Class : Class 8
A

Ans 2:

Rabi rajak from SHREE JAIN VIDYALAYA, Kolkata
Class : Class 5
And:D

Post Your Answer

Indranil Mukherjee from ryan international school, Bengaluru
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

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

Post Your Answer

Rajani Prabhakaran from ,
Subject :NSO    Class : Class 6

Post Your Answer

CHANDRA MOHAN REDDY from dps harni, Vadodara
Subject :NSO    Class : Class 8

Ans 1:

SUBRATA MUKHERJEE from ,
Class : Class 7
I think plane mirrors can also do it to some extent but more prominent is concave

Ans 2:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 10
the answer is B

Ans 3:

Bhavya Sheth from Bright Day School, Vadodara
Class : Class 6
Concave mirrors are used in solar cookers. as concave mirrors are converging, the are used to concentrate the sun's heat on the utensil.

Post Your Answer

Nipun sharma from gail dav public school, Auraiya
Subject :NSO    Class : Class 7

Ans 1:

KISHORE KUMAR E from MAHARISHI INTERNATIONAL RESIDENTIAL SCHOOL, SUNGUVARCHATHIRAM
Class : Class 9
ANSWER a. Refraction of light and the direction of refraction depends upon the density of the object because it reduces the speed of light.the Flint glass is more denSer than water and the air is no too denSer so there will be no refraction in the caSe of air. Therefore light refracts in water and the glass. ANOTHER REASON!: Light travalS on a straight line .

Ans 2:

Aditya kumar from Sapphire International School, Noida
Class : Class 8
ITS OPTION "C" AS SOME OF THE LIGHT REFRACTS IN WATER AND AIR

Ans 3:

Senthil Kumar from ARB INTERNATIONAL SCHOOL, Coimbatore
Class : Class 7
I THINK SO ANSWER IS C

Ans 4:

Dr D Martin from Harvard School pf Physics, Boston
Class : Class 1
C is the correct answer. I teach Physics. The angle of incidence entering and exiting is the same due to the same medium.

Ans 5:

anirudh_suresh@rocketmail.com from bangalore international academy, Bengaluru
Class : Class 7
B IS THE CORRECTONE. BELIVE ME

Ans 6:

Aditya kumar from Sapphire International School, Noida
Class : Class 8
Its "c" because some of the light rays get refracted

Post Your Answer

Arka Chakraborty from St. Patrick's Academy, Bengaluru, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9

Ans 2:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5

Ans 3:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
??????????????what?????????????????what???????????

Ans 4:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9
question is wrong

Post Your Answer

Dev Narayan Vinu from St. Thomas Residential School, Thiruvananthapuram
Subject :NSO    Class : Class 4

Ans 1:

Tejesh VB from GEMS New Millennium School, Al Khail, Dubai
Class : Class 8

Ans 2:

niyati from kv 2, delhi
Class : Class 4

Ans 3: (Master Answer)

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

Ans 4:

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

Post Your Answer

rittik singh from ,
Subject :NSO    Class : Class 5

Ans 1:

EKLAVYA GONDULE from DPS BHILAI, Bhilai
Class : Class 7

Ans 2:

EKLAVYA GONDULE from DPS BHILAI, Bhilai
Class : Class 7
yes,Sharad you are right but can you explain

Ans 3:

Sharad Jain from Presidium, Ghaziabad
Class : Class 5
Hello ! It is C as when the smell is spread , People notice it at some other room . It's the same with perfume .

Post Your Answer