National Science Olympiad Forum By SOF Olympiad Trainer - Page 542
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Anika Saha from New Town School, KOLKATA
Subject :NSO    Class : Class 5

Ans 1:

Trideev Reddy Maddirevula from IIPS, Riyadh
Class : Class 7
Y is a jaw bone joint just like the elbow joint.

Ans 2:

sarah pranav gothivarekar from Indian School Al Gubra, Muscat
Class : Class 4

Ans 3:

Ashee Srivastava from APEEJAY SCHOOL NOIDA , NOIDA
Class : Class 7
it is d

Ans 4:

Durva Shah from SSRVM, Ahmedabad
Class : Class 6
It is option A

Ans 5:

Pranjal Baliyarsingh from Sainik School, Bhubaneswar
Class : Class 6
A is right and it is RIGHT

Ans 6:

Durva Shah from SSRVM, Ahmedabad
Class : Class 6

Ans 7:

Ishaan Ahuja from TSMS, Noida
Class : Class 6
aaaaa is the ans

Ans 8:

KONDURU TEJESH from Sri chaitanya international school, Bangalore
Class : Class 4
how its d i got it a

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AAVAK from DPS, Aligarh
Subject :NSO    Class : Class 6

Ans 1:

Ritabrata Das from OPJS, Angul
Class : Class 7
answer should be a or c

Ans 2:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
No, only A is true

Ans 3:

Sarthak yadav from RPS, Mahendragarh
Class : Class 9
Answer can be A or C

Ans 4:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

Ans 5:

sujata patel from Podar International, Pune
Class : Class 6
both a

Ans 6:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

Ans 7:

Satya Sai Lohith Vootla from Chouifat International School Ruwais, Abu Dhabi
Class : Class 8
not only a is true also b is true

Ans 8:

Anshuman Mishra from kv no 3, Bhubaneswar
Class : Class 7

Ans 9:

sujata patel from Podar International, Pune
Class : Class 6
aaaaaaaaaaaaaa

Ans 10:

Joe Bipin from National Public School Agra, Bangalore
Class : Class 9
a and c is correct

Ans 11:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8
a only noobs

Ans 12:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

Ans 13:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

Ans 14:

Anika Saha from New Town School, KOLKATA
Class : Class 6
the ans can be both A and C

Ans 15:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

Ans 16:

Anshuman Mishra from kv no 3, Bhubaneswar
Class : Class 7

Ans 17:

sujata patel from Podar International, Pune
Class : Class 6
aaaaaaaaaaaaaaaaaaaaaaaaa

Ans 18:

Yashraj Namdev Deshmukh from Sahyadri English School, Loha, Nanded
Class : Class 6
Both A

Ans 19:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

Ans 20:

Kashvi Rawat from Gear Innovative International School, Bengaluru
Class : Class 3
In 'A', it only gives half the reason for why the image is inverted in a pin hole camera. I think that 'C' is correct as it is a correct statement.

Ans 21:

Vedang Amonkar from Dr K B Hedgewar High School, Panaji
Class : Class 6
3 trhing are truea c d

Ans 22:

Ahamed Shayaan from Sree Gokulam public school , Calicut
Class : Class 5
Both a and c are correct

Ans 23:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Ya Nishka you are right. C is the correct answer.

Ans 24:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

Ans 25:

amogh from DELHI PUBLIC SCHOOL NOIDA, Ghaziabad
Class : Class 6
as written in lakhmir singh the answer should be (C)

Ans 26:

Arsh Gupta from Cambridge International School, Jalandhar
Class : Class 4
the answer can be both a and c. scientifically both are correct

Ans 27:

Satya Sai Lohith Vootla from Chouifat International School Ruwais, Abu Dhabi
Class : Class 8
sorry I meant c

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Sourav Jena from ODM public school , BHUBANESWAR
Subject :NSO    Class : Class 5

Ans 1:

Harshit shah from Shishukunj International School, Indore
Class : Class 6
the words are Note,Tone,To,On,No and Ten 6 is the answer so, option is D

Ans 2:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8

Ans 3:

Bharat from Geetanjali Olympiad school, Bangalore
Class : Class 9
Note,Tone 2 is the answer so, option is D

Ans 4:

Mihika Raut from ST JOSEPHS SCHOOL, RIHAND NAGAR
Class : Class 8

Ans 5:

Arnav kaul from Chirec, Hyderabad
Class : Class 2

Ans 6:

Mrigank Roy from Delhi Public School Ghaziabad, Ghaziabad
Class : Class 9
Thanks Harshit

Ans 7:

Aditi from Pawar Public school , Mumbai
Class : Class 5
c

Ans 8:

Ashwak from Cambridge, Jalandhar
Class : Class 8
Ten on no to are words that can be formed

Ans 9:

Shreyas Singh from Podar International School, Pune
Class : Class 6

Ans 10:

Raksheet Shah from Swami Vivekanad International School, Mumbai
Class : Class 8

Ans 11:

Tanish Barasia from NPS International School, Singapore
Class : Class 8
note

Ans 12:

Shreyas Singh from Podar International School, Pune
Class : Class 6

Ans 13:

Mayank Agarwal from Delhi Public School, Indore
Class : Class 6

Ans 14:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
note and tone can be made

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DEEPINDER SINGH from SAINT JOSEPH'S SCHOOL, BATHINDA, BATHINDA, PUNJAB
Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
scurvy, a deficiency of vitamin C. Beriberi is a disease caused by a vitamin B-1 deficiency Pellagra is a disease caused by low levels of niacin, also known as vitamin B-3 Rickets is caused by deficiency of Vitamin D Hence no answer is correct

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
scurvy, a deficiency of vitamin C. Beriberi is a disease caused by a vitamin B-1 deficiency Pellagra is a disease caused by low levels of niacin, also known as vitamin B-3 Rickets is caused by deficiency of Vitamin D Hence no answer is correct

Ans 3:

Krishna Gupta from Greenfield public school, Delhi
Class : Class 8
Pellagra

Ans 4:

a from a, Ghaziabad
Class : Class 7
Hey there! None of the options are correct.

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DEEPINDER SINGH from SAINT JOSEPH'S SCHOOL, BATHINDA, BATHINDA, PUNJAB
Subject :NSO    Class : Class 6

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aryan vir from lotusvalley international school gurugram, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Midhuna from ABCD, Banglore
Class : Class 3

Ans 2:

aryan vir from lotusvalley international school gurugram, Gurgaon
Class : Class 7

Post Your Answer

aryan vir from lotusvalley international school gurugram, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Ryan Ganguly from Ebenezer International School, Bangalore
Class : Class 8
Law of reflection:angle of incidence= angle of reflection This formula is only used when the angles are measured from the normal to the ray and not from the ray to the mirror. In this diagram we see that the angle is measured from the ray to the mirrot .The normal measures 90° so we need to subtract 90° from 35° to get the angle of incidence which is 55° . We now that angle of incidence= Angle of reflection hence the answer will be 55°

Ans 2:

Rudra Tripathi from DPS Noida, Noida
Class : Class 10
Dude it should be 35 degree as angle of incidence = angle of reflection the solution is wrong

Ans 3:

Rishith Sunil from BVM global, CHENNAI
Class : Class 6

Ans 4:

Vedant from Prudence School , Delhi
Class : Class 9
It is stupid answer explanation

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aryan vir from lotusvalley international school gurugram, Gurgaon
Subject :NSO    Class : Class 7

Consider the following statements and select the correct option which correctly identifies true (T) and false (F).
(i) Concave mirror is used for side view mirror in vehicles.
(ii) The image formed by a plane mirror is upright.
(iii) When a person moves closer to a plane mirror, the size of his image in the mirror remains the same.
(iv) In the case of reflection, virtual image of the object is formed on the same side as the object.

(i) (ii) (iii) (iv)
A T F F T
B F T T F
C F T F T
D T F T F


Ans 1:

shaurya aggarwal from scholars rosary senior secondary school, rohtak
Class : Class 9

Ans 2:

ujjwal from Rockwell, Hyderabad
Class : Class 5

Ans 3:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4

Ans 4:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 9
if a person moves closer to the plane miror , ,would not size of the imagge become larger ,??????? WHy the statement saying that if a eprson moves near to a plane mirror , the image of the person would emain same in size??? SOF , please correct the answer of the question.. I am finding too many wrong quesions nowadays

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DEEPINDER SINGH from SAINT JOSEPH'S SCHOOL, BATHINDA, BATHINDA, PUNJAB
Subject :NSO    Class : Class 6

Ans 1:

Krishna Gupta from Greenfield public school, Delhi
Class : Class 8
Oiled paper

Ans 2:

Ashher Pervez from DPS Bhilai, Bhilai
Class : Class 10
The answer is frosted glass because we can see through it faintly.

Ans 3:

Ashher Pervez from DPS Bhilai, Bhilai
Class : Class 10
The answer is frosted glass because we can see through it faintly.

Ans 4:

a from a, Ghaziabad
Class : Class 7
Answer is option b) Frosted Glass.

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DEEPINDER SINGH from SAINT JOSEPH'S SCHOOL, BATHINDA, BATHINDA, PUNJAB
Subject :NSO    Class : Class 6

Post Your Answer