National Science Olympiad Forum By SOF Olympiad Trainer - Page 468
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Lokesh Sai Dasari from Rockwell International School, Hyderabad
Subject :NSO    Class : Class 5

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Shaurya Khurana from Suncity, Gurgaon
Subject :NSO    Class : Class 8

Ans 1:

Rhyin Mandal from Hem Sheela Model School, DURGAPUR
Class : Class 8
excuse me!!!! Is water not a liquid? :)

Ans 2:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
yes it is but it does not have ions that can conduct electricity

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Shaurya Khurana from Suncity, Gurgaon
Subject :NSO    Class : Class 8

Ans 1:

Shreyam Tripathy from Ann Mary School, Dehradun
Class : Class 10

Ans 2:

Shreyam Tripathy from Ann Mary School, Dehradun
Class : Class 10

Ans 3:

Aadi from Treamis World School, Bangalore
Class : Class 9
Nothing has been mentioned here, how are we supposed to know whether or not the object is placed at 2F(1) and its image is formed at 2F(2)

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swayam shah from delhi public school vadodara, Vadodara
Subject :NSO    Class : Class 8

Ans 1:

Dev Rawat from R D Rajpal School, New Delhi
Class : Class 8
I too did B but the answer according to sof is DPlease explain

Ans 2:

Aryan Raina from MGN Public School, Jalandhar
Class : Class 8
ya its b

Ans 3:

ABDUL Rahman SIDDIQUI from Indian school al maabela , muscat
Class : Class 9

Ans 4:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10

Ans 5:

Jasleen Kaur Brar from St Joseph's convent sen sec school, bathinda
Class : Class 9
Even i chose option B. Plz explain why would the answer be option D

Ans 6:

Simar Narula from Rishi Coaching Institute , Jaipur
Class : Class 8
The answer must be Option B

Ans 7:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
b?

Ans 8:

Nikita Sehgal from Apeejay School Mahavir Marg , Jalandhar
Class : Class 8
Yes the answer needs to b option B

Ans 9:

Anjisha Chakraborty from Mount Litera Zee School, Jabalpur
Class : Class 5
Option B

Ans 10:

Aryan Raina from MGN Public School, Jalandhar
Class : Class 8
no guys m sorry but their answer is correct as when we wear water goggle we can see clear. its fault our eyes not water.

Ans 11:

hrishikesh giri basumatary from marias public school, Guwahati
Class : Class 6

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Aaryaman Pradhan from De paul School , Berhampur
Subject :NSO    Class : Class 4

Ans 1:

AVANTIKA V from Amrita Vidyalayam Puducherry , Puducherry
Class : Class 4
D

Ans 2:

Sushree snehasikta behera from Mother's public school , Bhubaneswar
Class : Class 2
D is the correct answer as the moon takes approximately 3 days change from one phase to another. after new moon cresent moon comes.

Ans 3:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
Given figures show the shapes of Moon seen from Earth on different nights:We know that the moon changes from one phase to the next in approximately 3 days. Same is shown by the above figures. Let’s see what all phases the moon has, and put the above given dates to the right phases:That means on January 17, it would be a crescent moon – waxing crescent moon.Hence, the right answer is Option D.

Ans 4:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 5

Ans 5:

UMANG from spring dale college, Lucknow
Class : Class 7
the answer is D. because after the full moon, there comes the glibbous moon

Ans 6:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 5

Ans 7:

Isabelle Joy from The Shriram Millennium School Noida , Noida
Class : Class 4

Ans 8:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
answer is d because after new moon cresent moon comes after 2 days

Ans 9:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 5
eweaafdzdxfdxfxfxcxhvcxhfd ttfutdxdxudfxudfxfccfcf

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Naman surana from Witty international udaipur, Udaipur
Subject :NSO    Class : Class 8

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Ajoy Bhuyan from DELHI PUBLIC SCHOOL, Bongaigaon
Subject :NSO    Class : Class 4

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Naman surana from Witty international udaipur, Udaipur
Subject :NSO    Class : Class 8

Ans 1:

Akshara from NPS, Bengaluru
Class : Class 8
Option b is the correct answer .

Ans 2:

Aryan Raina from MGN Public School, Jalandhar
Class : Class 8
answer b is right

Ans 3:

swayam shah from delhi public school vadodara, Vadodara
Class : Class 4
it will be option b light falls on screen in reverse order of VIBGYOR after dispersion

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Naman surana from Witty international udaipur, Udaipur
Subject :NSO    Class : Class 8

Ans 1:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
SOF has given c as correct option in its own contentPlz verify and check...

Ans 2:

Akshara from NPS, Bengaluru
Class : Class 8
correct answer is c

Ans 3:

Student from School, City
Class : Class 8
The beam is parallel, so the light should not show any change whether it is near or away.

Ans 4:

Naman surana from Witty international udaipur, Udaipur
Class : Class 8

Ans 5:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
Answer is A

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Jayaditya singh from Delhi Public School, gurgaon
Subject :NSO    Class : Class 3

Ans 1:

Jayaditya singh from Delhi Public School, gurgaon
Class : Class 9
B

Ans 2:

divita saxena from bhavans vidya mandir ashti , nagpur
Class : Class 4
d as graphite is used to make pencil lead and bulb is made up of tungsten

Ans 3:

Darshini Chakravarty from Pinnacle High International School, Mumbai
Class : Class 4
b

Ans 4:

Avyukta Saraswat from St Francis School , Greater noida west
Class : Class 3
what is silca

Ans 5:

Raghav Srinivasan from GEAR, bangalore
Class : Class 5

Ans 6:

FAIZA AMIN from SAINT XAINS INTERNATIONAL SCHOOL ANANTNAG, ANANTNAG
Class : Class 3
D

Ans 7:

Yashaswin from KV afs begumpet, Hyderabad
Class : Class 4
C

Ans 8:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
B

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