National Science Olympiad Forum By SOF Olympiad Trainer - Page 659

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Mohammed Fahaam from Takshasila Public School, Hyderabad

Subject :NSO Class : Class 7

Which colour has the highest wavelength and which colour has the lowest? a. Indigo, Voilet b. Orange, Red c. Blue, Yellow d. Red, Voilet

Ans 1:

Mohammed Fahaam from Takshasila Public School, Hyderabad

Class : Class 9

All wrong. How can a colour have the highest and also the lowest wavelength? ??

Ans 2:

akshaya from vidya bhavan high school, Pune

Class : Class 8

Violet has the highest wavelength and red has the lowest wavelength

Ans 3:

ACHAL JHAWAR from DELHI PUBLIC SCHOOL , INDORE

Class : Class 8

red

Ans 4:

akshaya from vidya bhavan high school, Pune

Class : Class 8

Violet has the highest wavelength and red has the lowest wavelength

Ans 5:

Mohammed Fahaam from Takshasila Public School, Hyderabad

Class : Class 9

Correct answer

Ans 6:

ACHAL JHAWAR from DELHI PUBLIC SCHOOL , INDORE

Class : Class 8

red

Ans 7:

abhinav from fitjee world school, Hyderabad

Class : Class 8

Option d

Ans 8:

Mohammed Fahaam from Takshasila Public School, Hyderabad

Class : Class 9

All wrong. How can a colour have the highest and also the lowest wavelength? ??

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KISHAN H from Kendriya vidyalaya1, Bangalore

Subject :NSO Class : Class 3

Can anyone tell what is the answer for question no.4 of SET-A NSO 2017. Key answer published as option-D. But I think it should be option-C.

Ans 1:

Aditi Mahanti from DPS North Kolkata, Kolkata

Class : Class 3

it is only option c

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S SAHITHYAA RAMAN from Padma Seshadri T Nagar, Chennai

Subject :NSO Class : Class 6

A set of figures carrying certain characters is given. If the characters in each set follow a similar pattern, find the missing character.

A78
B126
C140
D132

Very easy

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S SAHITHYAA RAMAN from Padma Seshadri T Nagar, Chennai

Subject :NSO Class : Class 6

If the English alphabets are written in reverse order after interchanging alphabets from 'C to M' with those from 'P to Z' respectively, which letter would be midway between F and T in the new order?

AZ
BM
CN
DX

Good

View All Answers (2)

Ans 1:

Baltej Singh Grewal from AKSIPS-41, Chandigarh

Class : Class 10

Ans 2:

Ratul Singh from Bcm, Ludhiana

Class : Class 7

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Sushil Kumar from dpsnoida, Noida

Subject :NSO Class : Class 3

Read the given statements.
1. ________ and ________ have long-thin legs to wade through water.
2. ________ and ________ have sharp-curved claws called talons.
Select the correct words to fill the blanks.

A 1-Crane, Duck; 2-Hawk, Hen
B 1-Crane, Flamingo; 2-Eagle, Hawk
C 1-Eagle, Hawk; 2- Duck, Vulture
D 1-Crane, Flamingo; 2-Hen, Crow

View All Answers (4)

Ans 1:

Pritisha priya from Global Indian International School, Abu Dhabi, Abu Dhabi

Class : Class 7

Ans 2:

suvigya from Allenhouse Public School, Vasundhara, GHAZIABAD

Class : Class 6

Ans 3:

Aryan Swain from Kendriya Vidyalaya, Barimul, Kendrapara

Class : Class 5

Ans 4:

Shruti from ,

Class : Class 1

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Arsh from Billabong high, Bhopal

Subject :NSO Class : Class 2

_______ is the heaviest and ______ is the lightest.

AP, R
BP, Q
CR, S
DS, Q

Please explain

View All Answers (4)

Ans 1:

RUDRA VEER SINGH from Delhi Public School Noida, Noida

Class : Class 3

Ans 2:

SHIVEN.DINKAR from Delhi Public School, Noida

Class : Class 2

C is the right

Ans 3:

Adi Kadam from Orchids International School, Thane

Class : Class 3

Ans 4:

RUDRA VEER SINGH from Delhi Public School Noida, Noida

Class : Class 3

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Ritam Ghosh from Adamas International School, Kolkata

Subject :NSO Class : Class 7

In which of these lists, one of the three is incorrectly paired with other two?
(a) Radish, Turnip, Carrot
(b) Wheat, Rice, Pea
(c) Cauliflower, Cabbage, Broccoli
(d) Tomato, Mango, Apple

Why is this happening?

View All Answers (3)

Ans 1:

Sunidhi chatterjee from Carmel school kargali , Bokaro

Class : Class 7

Wheat, Rice ,Pea

Ans 2:

Mohammed Fahaam from Takshasila Public School, Hyderabad

Class : Class 9

b. Wheat, Rice, Pea

Ans 3:

Ved prajapati from Adani Vidya Mandir , Ahmedabad

Class : Class 8

(b) Wheat, Rice, Pea

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PRANEEL PRIYASH PANDA from AECS NARORA, BULANDSHAHR

Subject :NSO Class : Class 6

View All Answers (1)

Ans 1:

PRANEEL PRIYASH PANDA from AECS NARORA, BULANDSHAHR

Class : Class 6

djasidfjdkfo

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APOORVA.GUPTA from DPS Noida, Noida

Subject :NSO Class : Class 4

The object in the given figure is made of a combination of _________and ___________.

A Wood, plastic
B Metal, wood
C Glass, plastic
D Glass, paper

View All Answers (12)

Ans 1:

SHANTANU from STELLA MARIS INTER COLLEGE, Lucknow

Class : Class 5

Ans is GLASS,PLASTIC(option C)

Ans 2:

SHANTANU from STELLA MARIS INTER COLLEGE, Lucknow

Class : Class 5

Ans is GLASS,PLASTIC(option C)

Ans 3:

RAHUL SINHA from D.A.V Public Koyla Nagar Dhanbad, dhanbad

Class : Class 7

Option c.is the answer

Ans 4:

Satvik Agrawal from Delhi Public School, bhopal

Class : Class 5

Ans 5:

Riya shushil from Dps bangalore north , Bangalore

Class : Class 3

Ans 6:

Ashwak from Cambridge, Jalandhar

Class : Class 9

Chill Man the answer is C.

Ans 7:

ranak sharma from Cambridge Court World School, Jaipur

Class : Class 5

The answer is not C as it is written solvent - solute = Solution it is saying solvent MINUS solute

Ans 8:

Sashriti Das from Delhi Public School Bangalore North, Bangalore

Class : Class 5

Ans 9:

Suryansh solanki from St Joseph co Ed school, Bhopal

Class : Class 4

Ans c

Ans 10:

anika from St Joseph sen sec school Mahoba, Kulpahar

Class : Class 5

the answer is C. and you are very gadha and foolish .

Ans 11:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Class : Class 8

C C C the answer is CPlease give a yesif you agree with me

Ans 12:

DIPANWITA MAITI from SPINGDALES SCHOOL PUSA ROAD, New Delhi

Class : Class 9

Come on yaar, it's option C

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APOORVA.GUPTA from DPS Noida, Noida

Subject :NSO Class : Class 4

Select the correct option regarding solution.

A Solute + Solution = Solvent
B Solvent + Solution = Solute
C Solvent - Solute = Solution
D Solvent + Solute = Solution

View All Answers (17)

Ans 1:

Bhavni Oberoi from Amity International School, Visakhapatnam

Class : Class 4

Solute-solvent is not a solution there is a huge difference

Ans 2:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Class : Class 8

ans is Dplease agreeeveryone seethe ans is D

Ans 3:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI

Class : Class 8

Ans 4:

S K Charukhanthan from KV, Bangalore

Class : Class 6

C and D is same how could they do like thissssssssssssssss?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????///

Ans 5:

Sashriti Das from Delhi Public School Bangalore North, Bangalore

Class : Class 5

Ans 6:

Midhuna from ABCD, Banglore

Class : Class 3

Correct answer is D because solvent and solute gives solution

Ans 7:

SAI KRISHNA from SHISHYA BEML PUBLIC SCHOOL, BANGALORE

Class : Class 3

charukhanthan in c it is - in d it is so ans is d

Ans 8:

Ashwak from Cambridge, Jalandhar

Class : Class 9

Ans 9:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida

Class : Class 7

There is so less difference in both 'C' and 'D'.I think they should make more difference, but in level 2,they will trick you, no matter what.The questions will come like this only.Good Luck Everyone!

Ans 10:

G Sai krishiv raju from Delhi public school, Hyderabad

Class : Class 7

Ans 11:

Ashwak from Cambridge, Jalandhar

Class : Class 9

Sorry, my first one was misprinted .. I am telling you the correct explanation of the question ---- In C it is written solvent - solute = solution but you see in D it is written solvent solute = solution â¦â¦.Hence, option D is correct!!!!!

Ans 12:

anika from St Joseph sen sec school Mahoba, Kulpahar

Class : Class 5

my ans is d my darling

Ans 13:

Ashwak from Cambridge, Jalandhar

Class : Class 9

In C it is written solvent - solute =solution but in D it is written solvent solute = solution . So the correct answer is D .

Ans 14:

Naitik from Delhi Public School Noida, Noida

Class : Class 4

ans is d

Ans 15:

RITASHREE ROY from VMS JOKA, KOLKATA

Class : Class 8

the answer is d because solute and soluvent together form solution

Ans 16:

Satvik Agrawal from Delhi Public School, bhopal

Class : Class 5

Ans 17:

Daksh Jain from Deens Academy, Bangalore

Class : Class 4

c is minus and d is plus

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