National Science Olympiad Forum By SOF Olympiad Trainer - Page 786
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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

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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.

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Rajani Prabhakaran from ,
Subject :NSO    Class : Class 6

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

Ans 1:

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.

Ans 2:

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

Ans 3:

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

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

Ans 1:

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

Ans 2:

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

Ans 3:

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 4:

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

Ans 5:

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

Ans 6:

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 .

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

Ans 1:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5

Ans 2:

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

Ans 3:

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

Ans 4:

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

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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

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rittik singh from ,
Subject :NSO    Class : Class 5

Ans 1:

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 .

Ans 2:

EKLAVYA GONDULE from DPS BHILAI, Bhilai
Class : Class 7

Ans 3:

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

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BHAVYA GOYAL from Venkateshwar International School Sec 10 Dwarka New Delhi, New Delhi
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C. Because, after May, the consumption keeps getting lower which indicates that they started saving water.

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Jyothi from CMR NPS, Bengaluru
Subject :NSO    Class : Class 6

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