National Science Olympiad Forum By SOF Olympiad Trainer - Page 630

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Correct

Ans 2: (Master Answer)

Class : Class 1

Venus is the hottest planet in the solar system. Although Venus is not closest to the sun, its dense atmosphere traps heat. As a result, temperatures on Venus are higher than the temperature on Mars.


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Subject :NSO    Class : Class 6

You are standing upright in a room in front of a vertical mirror. In this mirror, you can see from your position, only the upper two-third part of your body. You wish to see the full image of your body in the mirror. Which combination of the following three courses of action will achieve this?
I. Move away from the mirror
II. Move towards the mirror
III. Use a mirror whose height will allow you to see your full image

A I only
B II only
C III only
D Either I or III


How come it is only option C and not D ?

Ans 1:

Class : Class 5

Ans 2:

Class : Class 2

Ans 3:

Class : Class 10
Atul Sanjeev can you say the reason

Ans 4:

Class : Class 9
it is d

Ans 5:

Class : Class 1
d is the answer. idk why they have marked it wrong

Ans 6:

Class : Class 6
answer will be D

Ans 7:

Class : Class 6
d IS THE ANSWER

Ans 8:

Class : Class 3
soumyaraj nice effort to explain lol 😆

Ans 9:

Class : Class 6
The answer is D.

Ans 10:

Class : Class 6
dddd!!!!

Ans 11:

Class : Class 7
Ishika you are wrong. Try it yourself. When you move away from the mirror, it obviously will show more. And do not worry everyone, because it is just a printing mistake. And the answer is D. No matter what happens. It is only D. And, there is a sof account whose name is admin and he always answers computer questions correctly. He is appointed by sof only. All of his answers are called master answers. I think this is not fair. If you do not like that admin of sof, comment below. Thank you. Bye!

Ans 12:

Class : Class 10
Hey!!!!! Not fair it should be D!!!

Ans 13:

Class : Class 6
i just tried the experiments

Ans 14:

Class : Class 6
the answer is D

Ans 15:

Class : Class 5
Answer should be D as you can see your full self even after you move back.

Ans 16:

Class : Class 8
HOW IN THE WORLD IS IT C??????It is B. Come on SOF try it yourself.

Ans 17:

Class : Class 1
It should be D!!

Ans 18:

Class : Class 9
Ans is C

Ans 19:

Class : Class 8
Excuse me, but I think that the answer should be D , Contrary to the answer key given.

Ans 20:

Class : Class 5
Try standing in front of a mirror where only two-thirds of your body is visible. You will find it quite impossible to see the whole of yourself, even by moving away. that's why the answer is option c only.

Ans 21:

Class : Class 8
it is d it is d

Ans 22:

Class : Class 10
The answer can be c according to the size of the mirror. As the size is not mentioned , I think that the answer should be d.....

Ans 23:

Class : Class 6
answer is d

Ans 24:

Class : Class 10
I think that the correct option should be D

Ans 25:

Class : Class 9
ddddddddddddddwhy has sof given the answer c??

Ans 26:

Class : Class 7
Come on SOF this is not fair please make this right this has been pointed out 4 years back

Ans 27:

Class : Class 7
But I think it'd be d

Ans 28:

Class : Class 6
its the fourth mistake so far come on sof its d

Ans 29:

Class : Class 6
........Z?

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
What does this QUESTION mean? I didn't understand the MEANING only.Pencil of light????

Ans 2:

Class : Class 8
The answer is convergent,but what's its meaning?

Ans 3:

Class : Class 9
The beam of convergent light is the way the rays come from different directions which finally meet at a specific point, then that collection of the rays of light can be called as convergent rays or convergent beam of light . That is what happens with a pinhole camera A convergent beam of light enters the pinhole. So B is the correct answer.

Ans 4:

Class : Class 7
what is the correct answer?

Ans 5:

Class : Class 9
what would be the answer???

Ans 6:

Class : Class 9

Ans 7:

Class : Class 6

Ans 8:

Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9

Ans 2:

Class : Class 9
But why? Explain the reason please.......

Ans 3:

Class : Class 6
The answer is A.

Ans 4:

Class : Class 6
The answer s A.

Ans 5:

Class : Class 9
the answer is a

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 7

Refer to the given flow chart showing flow of energy in a food chain.

Select the correct statement regarding P, Q, R and S.
(i) S helps in cleaning of environment as well as recycling of nutrients.
(ii) The role of Q comes when plants and animals die.
(iii) P operate at all levels of food chain.
(iv) R eats other animals and get its food indirectly from P.

A (i) and (iv) only
B (i), (iii) and (iv) only
C (iii) and (iv) only
D (i), (ii), (iii) and (iv)


Ans 1:

Class : Class 10
PLease reply to my ques

Ans 2:

Class : Class 10
Who is P,q,r and s?

Ans 3:

Class : Class 4

Ans 4:

Class : Class 9
Why admin?

Ans 5: (Master Answer)

Class : Class 1
The correct answer is A.

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