National Science Olympiad Forum By SOF Olympiad Trainer - Page 466
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

Jashith from MVN, Faridabad
Class : Class 6
Ans from the question is wrong. the hollow part will allow light to pass and thus the given shadow will not be formed

Ans 2:

Agrimn from Gateway International School, Sonipat
Class : Class 6
the answer according to the question is wrong

Ans 3:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
No, it's d

Ans 4:

student from school, city
Class : Class 10
The answer is D.

Ans 5:

Subhang Deep Sahu from Narayana CO Kadugodi Bangalore, Bangalore
Class : Class 8

Ans 6:

Aarav Mishra from D R Amin Memorial school, Baroda
Class : Class 6
Logically it should be C

Ans 7:

Aarav Malviya from INDIAN SCHOOL SALALAH, SALALAH
Class : Class 7
From the image, we can say that the image is formed by a round opaque object. Now, let’s check the following objects and find the one which will not form the above shadow:A. An egg ----- An egg is oval in shape, but if the source of light is placed at either of the ends, the shadow formed would be round.B. A vase ----- A vase can have any size and shape, but usually a regular vase has rounded edges. So, if source of light is placed at either of the ends, the shadow formed would be round.C. A cone ----- A cone has a pointed end, and a flat rounded end. So, if a source of light is placed at either of the ends, the shadow formed would be round.D. A metal ring ----- A metal ring is round, but hollow in between, so light would pass through the central part. So, the shadow formed by the ring will be a round hollow.Hence, the right answer is Option D.

Ans 8:

Indrobrata Sarkar from Techno India Group Public School, Chinsurah
Class : Class 6
It will be D !!!!!!!!!!

Ans 9:

piyush Choudhary from Maxfort School Dwarka , New Delhi
Class : Class 6
The answer should be D as all the options except D have a circular point.metal rings also have circle shape for fitting of fingers but they are hollow and let Light pass through it and as we know Light only passes through Opaque objects.

Ans 10:

Raghav Aggarwal from CAMBRIDGE SCHOOL INDIRAPURAM, INDIRAPURAM
Class : Class 7
wow

Ans 11:

Shourya from Shanthiniketan public school, Vivekanandanagar ramanagar
Class : Class 6
it should be c. how can it be d as it is hollow at the center?

Ans 12: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 13:

Subhang Deep Sahu from Narayana CO Kadugodi Bangalore, Bangalore
Class : Class 8
it!!!!!!!!!!! is!!!!!!!!!! ddddddddddddddddddddddd!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 14:

Arsh from Lahs, Gwalior
Class : Class 3
NO !!!!!! THE ANS IS C!!!!

Post Your Answer

Shivam Gupta from Army Public School, Noida
Subject :NSO    Class : Class 5

Post Your Answer

Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

Admin fly from Ddssxxx, Ax
Class : Class 1
the answer is B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Post Your Answer

Pranav Shagrithaya from NPS Yelahanka, Bengaluru
Subject :NSO    Class : Class 5

Ans 1:

Pratham Dave from GNS, Bangalore
Class : Class 7
B is the answer to this question but it is showing C as correct option

Ans 2:

Archishman Pal from Sri Krishna Mission School, Agartala
Class : Class 9

Ans 3:

V N from BHA, MAHARASHTRA
Class : Class 8

Ans 4:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 5:

krishneil from Elpro international school, Pune
Class : Class 6
Think the the option should be (b)

Ans 6:

Avyay mahajan from Nps international, Singapore
Class : Class 5
It should be B

Ans 7:

Samriddh from ,
Class : Class 5
Both fern and mushroom have spores.Both A and B can be correct

Ans 8:

Prisha Shah from Euroschool Airoli, Mumbai
Class : Class 6
shouldn;t the correct ans be B?

Ans 9:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 10
C is the correct option as it is saying what is used for 'agriculture'

Ans 10:

Krithi Manasvini from Alwin Memorial Public School, Chennai
Class : Class 7
Seed drill is a tool used for sowing seeds in agriculture. It has a funnel shaped part where seeds are put in. These seeds are buried deep in the soil through hollow pipes.So b is the answer

Ans 11:

Aaditva from Vasant Valley School, New Delhi
Class : Class 8
B is the answer

Post Your Answer

Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

Lakshya Rajurkar from Euroschool, PUNE
Class : Class 6
WHY DISTILLATION SEPERATION PART WRONG?

Ans 2:

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Class : Class 10
WHY DISTILLATION METHOD FOR SEPARATION OF TWO IMMISCIBLE LIQUID IS WRONG?

Ans 3:

Aarushi Upadhyayula from The Cambridge International School, Bengaluru
Class : Class 7
Why is the distillation method wrong?? It should be correct!! The answer should be D!!

Ans 4:

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Class : Class 10

Ans 5:

Devaj Parekh from Choithram School North Campus, Indore
Class : Class 7
Correct answer is D, As distillation process is used to separate immiscible liquids as both have different boiling points.

Ans 6:

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Class : Class 10

Ans 7:

Admin fly from Ddssxxx, Ax
Class : Class 1
the answer is C!!!!!!!!!!!!!!!!

Ans 8:

Samarth from Central school , Chennai
Class : Class 7
Wrong answer

Ans 9:

Gunjan Rudraruhi Chauthiya from New Beersheba Public School, Pithoragarh
Class : Class 8
Distillation can also be used. It is also correctThe answer is incorrect

Ans 10:

Siddhanth Subramanian from Global Indian International School , Singapore
Class : Class 7
Distillation can also be usedthe ans C is correct

Post Your Answer

Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

Admin fly from Ddssxxx, Ax
Class : Class 1
diamond is a non conducter

Ans 2:

m abi kareem from Dr KRBM School AES Pushpavihar, New Delhi
Class : Class 6
answer is b

Post Your Answer

vineet8026@gmail.com from dps, Doha
Subject :NSO    Class : Class 3

Post Your Answer

rajanya mandal from j h ambani, surat
Subject :NSO    Class : Class 4

Ans 1:

AVANTIKA V from Amrita Vidyalayam Puducherry , Puducherry
Class : Class 4
Solute Solvent =Solution

Ans 2:

UMANG from spring dale college, Lucknow
Class : Class 7
The answer is D. because the the substance in which solute is dissolved is called solvent. and the mixture formed from solvent and solute is called solution.

Ans 3:

Jeet Anandani from Pawar public school, Mumbai
Class : Class 4

Ans 4:

Kashvi Chirag Radhakrishnan from Vidya Valley,Susroad, Pune, Pune
Class : Class 4

Ans 5:

Atrijo Ghosh from Don Bosco Liluah, Howrah
Class : Class 4
The answer is wrong.It should be option C

Ans 6:

Kashvi Chirag Radhakrishnan from Vidya Valley,Susroad, Pune, Pune
Class : Class 4
yep it should be C

Post Your Answer

vineet8026@gmail.com from dps, Doha
Subject :NSO    Class : Class 3

Ans 1:

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

Ans 2:

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

Ans 3:

Ajay Singh from Kendriya Vidyalaya Khanapara, Guwahati
Class : Class 3
The correct answer is B

Ans 4:

Ajay Singh from Kendriya Vidyalaya Khanapara, Guwahati
Class : Class 3
The correct answer is B

Ans 5:

Ajay Singh from Kendriya Vidyalaya Khanapara, Guwahati
Class : Class 3
The correct answer is B

Ans 6:

Ajay Singh from Kendriya Vidyalaya Khanapara, Guwahati
Class : Class 3
The correct answer is B

Post Your Answer

DEVANG Gupta from B K birla school kalyan, Kalyan
Subject :NSO    Class : Class 4

Post Your Answer