National Science Olympiad Forum By SOF Olympiad Trainer - Page 494
  1. Home
  2. /  Forum

User Forum

Ask Your Question
TEJASWANI from TIME SCHOOL, HYDERABAD
Subject :NSO    Class : Class 7

Post Your Answer

Gitika from Ritchie Park elementary school, USA
Subject :NSO    Class : Class 5

Post Your Answer

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

Post Your Answer

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)

Post Your Answer

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

Ans 1:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

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

Ans 6:

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 7:

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 8:

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 9:

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

Ans 10:

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

Ans 11:

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

Post Your Answer

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

Ans 1:

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

Ans 2:

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 3:

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

Ans 4:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
eweaafdzdxfdxfxfxcxhvcxhfd ttfutdxdxudfxudfxfccfcf

Ans 5:

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 6:

AAYANSH from New horizon scholars school, Thane
Class : Class 10

Ans 7:

AVANTIKA V from St.joseph of Cluny school , Puducherry
Class : Class 6
D

Ans 8:

AAYANSH from New horizon scholars school, Thane
Class : Class 10

Ans 9:

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

Post Your Answer

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

Post Your Answer

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

Post Your Answer

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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Post Your Answer

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

Ans 1:

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

Ans 2:

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

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:

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 5:

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

Post Your Answer