National Science Olympiad Forum By SOF Olympiad Trainer - Page 649

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
The correct ans is option C because electrostatic force is a non contact force which is similar to magnetic force and the comb is like a magnet and tin pieces of paper are like the metal here (So the comb will attract the tiny pieces of paper).

Ans 2:

Class : Class 7
yup

Ans 3:

Class : Class 6
it can also be said as static electricity

Ans 4:

Class : Class 7

Ans 5:

Class : Class 5
C

Ans 6:

Class : Class 8
The answer is C

Ans 7:

Class : Class 5
The answer is C

Ans 8:

Class : Class 7
I prefer option C

Ans 9:

Class : Class 6
6536e6w33346si7s7474r6ssxfge65eueskibidyohio fanomtax rizzler

Ans 10:

Class : Class 5
Class :C

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
All report an error they give all wrong only

Ans 2:

Class : Class 6
The answer is D.

Ans 3:

Class : Class 4

Ans 4:

Class : Class 7
IDIOTS just listen to them or maybe they are wrong

Ans 5:

Class :
Ans is D

Ans 6:

Class : Class 5
Yes but in the question it said that the animal was imanginative can't believe what type of an animal it was.

Ans 7:

Class : Class 8
Mammals do not have 3 eyes

Ans 8:

Class : Class 4
ydejkcdhbjxdjkdajkdsjhdasjhdajhsadhjdaj

Ans 9:

Class : Class 9

Ans 10:

Class : Class 8
If the animal really existed it would have belonged to the same group as cow.

Ans 11:

Class : Class 5
ans is DBECAUSE IT IS A IMAGINARY ANIMAL

Ans 12:

Class : Class 7
Idiots, the monster fed milk to its young, a feature seen only in Mammals

Ans 13:

Class : Class 5
The answer is D

Ans 14:

Class : Class 4
If this animal really existed it would have to be a monster that would eat us

Ans 15:

Class : Class 6
mammals do not have 6 legs and has more han 1 eye!

Ans 16:

Class : Class 8
this question makes no sense . 6 legs-can be an insect , eye on his forehead???

Ans 17:

Class : Class 5
I thought this could be an insect as it HAS SIX LEGS. And some spiders( I know they are not insects ) have more than two eyes so it could be possible that the correct answer is b. But it has fur and is feeding its young one milk so the answer should be d

Ans 18:

Class : Class 8

Ans 19:

Class : Class 5
It can't be D as they do not have six legs. no option is correct. I will report error for it is NOOT D

Ans 20:

Class : Class 7
This is impossible because a cow has four legs not 6 legs and also it has two eyes not one eye and those two eyes are not on the forehead

Ans 21:

Class : Class 9
The answer is D. Hair on skin and breast feeding the young ones are characteristic of mammals such as cow. So, if really existed, this animal would have been placed with cow.

Ans 22:

Class : Class 4

Ans 23:

Class : Class 8
Mammals do not have 3 eyes

Ans 24:

Class : Class 5
forehead? hahahahahahahahah

Ans 25:

Class : Class 7
This is impossible cow only as four legs and two eyes and those two are not on the forehead

Ans 26:

Class : Class 5
I can say that they have fur but they don't have 6 legs and 1 eye on the forehead

Ans 27:

Class : Class 5
Firstly , mammals do not have three eyes, secondly which mammal has six legs ???????????

Ans 28:

Class : Class 4
how can we tell what group is that animal if that doesn't exist

Ans 29:

Class : Class 7
As this question is already wrong a mammal can not have 6 legs.

Ans 30:

Class : Class 8
Is cow have 6 legs and 1 eye on its forehead

Ans 31:

Class : Class 5
Ans D ( Cow)

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 10
IF SOF CAN EXPLAIN THIS CORRECTLY, THEN I WILL STOP DOING PRACTICE OF ANY OLYMPIAD

Ans 2:

Class : Class 7
The ans should be C.

Ans 3:

Class : Class 5
I could not find any logic in this answer. Can anyone explain it? THANS FOR READING!!!

Ans 4:

Class : Class 2

Ans 5:

Class : Class 6
The sol says ans is C but it correct ans is B.

Ans 6:

Class : Class 8
ans should be c!!! I am reporting an error

Ans 7:

Class : Class 5
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Ans 8:

Class : Class 6
never use sof trainer they know nothing

Ans 9:

Class : Class 5
how is it b

Ans 10:

Class : Class 4
The solution itself explains that c is the correct ans. So that means m2 is opaque and m1 is transparent. Please someone correct this ans

Ans 11:

Class : Class 9
how is it B!?

Ans 12:

Class : Class 8
the answer is c 'cause material 1 is transparent and material 2 is opaque. The solution also says c. Typing error. Thanks for reading

Ans 13:

Class : Class 10
2 should be opaque and 1 transparent, or both opaque

Ans 14:

Class : Class 5
howwwwwwww ccccccccccc

Ans 15:

Class : Class 8
WHY YOU TYPE SO MANY C Ishaan

Ans 16:

Class : Class 5
There must be a technical issue because when I read the solution, it was written that the correct answer is C.

Ans 17:

Class : Class 8
The answer should be C. But answer is given B which is impossible.

Ans 18:

Class : Class 10
CORRECT ANSWER SHOULD BE C

Ans 19:

Class : Class 4
and should be C and i did C cut now it is showing that i have done B!!

Ans 20:

Class : Class 6
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 21:

Class : Class 5
correct ans is C

Ans 22:

Class : Class 8
It explains c is the correct ans but on the front it says b. Someone please correct this. They cut my marks also.

Ans 23:

Class : Class 5
answer is c sof is wrong

Ans 24:

Class : Class 8
ANSWER WILL BE 'C ' CAUSE THROUGH TRANSPARENT MATERIAL WE CANNOT SEE SHADOW OF A THING BUT THROUGH OPAQUE MATERIAL WE CAN SEE A THING'S SHADOW

Ans 25:

Class : Class 4

Ans 26:

Class : Class 6
The guys who solved the paper and created this test was in hurry. So he did not take efforts to review his answers, hence many answers are wrong here. How will students trust on these guys?

Ans 27:

Class : Class 9
Ans is c as you see light can't pass through material 2 and can pass through material 1. According to SOF ans b which mean light can pass through cardboard and can't through clear pastic sheet!!!!!. Please correct this SOF or it can be a typing mistake. Thanks for reading.

Ans 28:

Class : Class 7
In the solutions it is showing C as correct option but in front It is showing B as the answer to this question. please correct the answer.

Ans 29:

Class : Class 6
Blunders made by SOF. PLEASE FIX THIS !!!!!

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
THE CORRECT ANSWER SHOULD BE 5492

Ans 3:

Class : Class 6

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Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

Class : Class 1
These are referred to as X-linked genes.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
HOW'

Ans 2:

Class : Class 7
njkhugbvfjdnvog3ngv;3oinv/

Ans 3:

Class : Class 8
Why not b

Ans 4:

Class : Class 3
D is the ans

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 6
uilbvsln v;nuaerofofi'hxcdwrn r[c0[hpamsc

Ans 2:

Class : Class 7
lOl

Ans 3:

Class : Class 9

Ans 4:

Class : Class 9

Ans 5:

Class : Class 9
answer is B.

Ans 6:

Class : Class 7
:) :o

Ans 7:

Class : Class 10

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 3
they need to repel cause same poles repel

Ans 2:

Class : Class 5
I thought that the whole magnet was north and south each

Ans 3:

Class : Class 5

Ans 4:

Class : Class 7
InThe first and second magnets, the south poles are facing each other , so they are going to repel.

Ans 5:

Class : Class 4
They are going to repel each other , as both the south poles of the magnets are facing each other .

Ans 6:

Class : Class 5

Ans 7:

Class : Class 4

Ans 8:

Class : Class 6

Ans 9:

Class : Class 6

Ans 10:

Class : Class 5

Ans 11:

Class : Class 6

Ans 12:

Class : Class 5

Ans 13:

Class : Class 7

Ans 14:

Class : Class 5

Ans 15:

Class : Class 6
Two same poles repel whereas two different poles attract each other. There are two poles of a magnet, to be precise anyway, namely the North and South Pole

Ans 16:

Class : Class 5

Ans 17:

Class : Class 7

Ans 18:

Class : Class 6
Very easy!!!!!!!!!!!!!

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7

Ans 3:

Class : Class 9
c

Ans 4:

Class : Class 6
C

Ans 5:

Class : Class 7
Very easy

Ans 6:

Class : Class 7

Ans 7:

Class : Class 7
c

Ans 8:

Class : Class 7
Very easy

Ans 9:

Class : Class 7
C

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10
so ans should be option B

Ans 2:

Class : Class 9
For the people who didn't see the figure, the figure is the same as the one in the previous question. However, even I don't understand how the answer is (a). It should be (b)

Ans 3:

Class : Class 10
For all those who say that the figure is not there, the question refers to the figure in the previous question, that is, Q.9.A is the correct option because by in the same order it means the same order in which the cells of the battery are connected, that is, positive terminal should be connected to the negative terminal, through the wires.I, therefore, believe that option A is the correct option.If you did not understand the above explanation, then imagine that the two probes are just at the side of the battery. Now imagine that another battery is between the two probes in the same order like the other battery. Now can you imagine the circuit complete and understand why option A is correct?Hope that this comment is helpful.

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6
The qs is wrong as it should be "similar batteries" as for the glow of the bulb one battery one work at all .

Ans 6:

Class : Class 9
THERE IS NO FIGURE

Ans 7:

Class : Class 10
where is the figure

Ans 8:

Class : Class 6
wrong !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 9:

Class : Class 8

Ans 10:

Class : Class 6
My tab is being discriminated! I didn't get the figure.

Ans 11:

Class : Class 9
WHY THIS ANSWER??????

Ans 12:

Class : Class 8
I think it is the photo in the previous question

Ans 13:

Class : Class 8
very nice photo

Ans 14:

Class : Class 10
There is no figure!!!!!

Ans 15:

Class : Class 8

Ans 16:

Class : Class 7
why is figure not given?

Ans 17:

Class : Class 8
It is A

Ans 18:

Class : Class 10
no figure !!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 19:

Class : Class 10
the figure is the same as in question 9........but the ans is not option A because if we add a battery between the probes in the same order , then as overall , the negative terminal of the two batteries will come in contact and as we know both the batteries will push electricity against each other and we have to subtract its voltage , thus resulting in decrease in the amount of electricity or short circuit may happen.

Ans 20:

Class : Class 10
Where is the figure?

Ans 21:

Class : Class 6
why answer is A?????????????????????????????????????

Ans 22:

Class : Class 6

Ans 23:

Class : Class 6
the question is from the figure in question 9

Ans 24:

Class : Class 10

Ans 25:

Class : Class 6
THERE IS NO FIGURE GIVEN. NOT GOOD!!!

Ans 26:

Class : Class 9

Ans 27:

Class : Class 6
When a battery is connected in the same order, it will cause a short circuit. On the other hand, Connecting it in the reverse order will brighten it up. The answer is b.

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