National Science Olympiad Forum By SOF Olympiad Trainer - Page 674

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
throughout the time period or the 21 swings the pendulum will pass through the point Y 21 times. so the answer is B(t/21)

Ans 2:

Class : Class 8
Hi The Answer is T/10Sub To my YT:SkyPeRtan Wolf

Ans 3:

Class : Class 8
it should be t/10 only as during time period the pendulum will pass through the point y twice.so the time period will be t/10

Ans 4:

Class : Class 8
it should be t/10 only as during time period the pendulum will pass through the point y twice.so the time period will be t/10

Ans 5:

Class : Class 10
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Ans 6:

Class : Class 9
Yes it should be t/10 as the pendulum will pass through point y twice in its one revolution...... so the the time period should be t/10

Ans 7:

Class : Class 6
It should be T/21 only as T is the total time and no of times it passes Y is 21.Therefore the answer is T/21

Ans 8:

Class : Class 3
The answer is right - it should be T/10

Ans 9:

Class : Class 7
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllloooooooooooooooooooooooooooooooooooooooooooooo

Ans 10:

Class : Class 6
it should be t/21

Ans 11:

Class : Class 7
I agree with you

Ans 12:

Class : Class 6

Ans 13:

Class : Class 8
Here, in this example, the pendulum passes through y 21 times. So, it will do 10 complete oscillations and 1 half which is basically touching y. Therefore, the time period of the pendulum is T/10.

Ans 14:

Class : Class 8
it should be t/10 only as during time period the pendulum will pass through the point y twice.so the time period will be t/10

Ans 15:

Class : Class 9

Ans 16:

Class : Class 8

Ans 17:

Class : Class 4
yes I also agree with you

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
I do agree with Bhabani prasad

Ans 2:

Class : Class 7
easyyyyyyyyy

Ans 3:

Class : Class 7
Guys you are wrong process name is deposition but you need to cool it to water then freeze it

Ans 4:

Class : Class 6
gas to solid is deposition and opposite is sublimation ans wrong

Ans 5:

Class : Class 6
The answer is not B

Ans 6:

Class : Class 7

Ans 7:

Class : Class 7
same

Ans 8:

Class : Class 9
In process v, actually sublimation takes place

Ans 9:

Class : Class 9
Answer is B because to turn Water vapour into ice you need Deposition but water vapour cannot be deposited that is why you first need to turn the water vapour to water by condensation and then to convert water to ice you need freezing . Hence answer B is correct

Ans 10:

Class : Class 6
How in processes v condensation came?

Ans 11:

Class : Class 7
ya

Ans 12:

Class : Class 7
NA

Ans 13:

Class : Class 7
The answer can be B and D both.

Ans 14:

Class : Class 2

Ans 15:

Class : Class 7
I also agree with all of you . That's just impossible, I guess.

Ans 16:

Class : Class 6

Ans 17:

Class : Class 7
easy

Ans 18:

Class : Class 7
it is a direct change, so it does have to turn into liquid state

Ans 19:

Class : Class 2

Ans 20:

Class : Class 6
We can express process v as deposition and how did condensation and freezing get involved

Ans 21:

Class : Class 8
I ALSO AGREE WITH YOU ALL

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
C

Ans 2:

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

Ans 3:

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 4:

Class : Class 7
I prefer option C

Ans 5:

Class : Class 6
6536e6w33346si7s7474r6ssxfge65eueskibidyohio fanomtax rizzler

Ans 6:

Class : Class 5
The answer is C

Ans 7:

Class : Class 8
The answer is C

Ans 8:

Class : Class 7
yup

Ans 9:

Class : Class 7

Ans 10:

Class : Class 5
Class :C

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Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 4

Ans 3:

Class : Class 2

Ans 4:

Class : Class 8
Mammals do not have 3 eyes

Ans 5:

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

Ans 6:

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 7:

Class : Class 5
forehead? hahahahahahahahah

Ans 8:

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

Ans 9:

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

Ans 10:

Class : Class 5
The answer is D

Ans 11:

Class : Class 8
Mammals do not have 3 eyes

Ans 12:

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

Ans 13:

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 14:

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 15:

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 16:

Class : Class 5
Ans D ( Cow)

Ans 17:

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 18:

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

Ans 19:

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

Ans 20:

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

Ans 21:

Class : Class 6
The answer is D.

Ans 22:

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

Ans 23:

Class : Class 4

Ans 24:

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

Ans 25:

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

Ans 26:

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

Ans 27:

Class : Class 9

Ans 28:

Class : Class 9
ydejkcdhbjxdjkdajkdsjhdasjhdajhsadhjdaj

Ans 29:

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

Ans 30:

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

Ans 31:

Class :
Ans is D

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 10
CORRECT ANSWER SHOULD BE C

Ans 2:

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

Ans 3:

Class : Class 7
The ans should be C.

Ans 4:

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 5:

Class : Class 7
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Ans 6:

Class : Class 2

Ans 7:

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 8:

Class : Class 9
how is it B!?

Ans 9:

Class : Class 5
correct ans is C

Ans 10:

Class : Class 6
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Ans 11:

Class : Class 5
howwwwwwww ccccccccccc

Ans 12:

Class : Class 6
never use sof trainer they know nothing

Ans 13:

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

Ans 14:

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

Ans 15:

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 16:

Class : Class 5
how is it b

Ans 17:

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

Ans 18:

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

Ans 19:

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 20:

Class : Class 5
answer is c sof is wrong

Ans 21:

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 22:

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

Ans 23:

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 24:

Class : Class 4

Ans 25:

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

Ans 26:

Class : Class 8
WHY YOU TYPE SO MANY C Ishaan

Ans 27:

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 28:

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 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
THE CORRECT ANSWER SHOULD BE 5492

Ans 2:

Class : Class 4

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 3
D is the ans

Ans 2:

Class : Class 9
HOW'

Ans 3:

Class : Class 8
Why not b

Ans 4:

Class : Class 7
njkhugbvfjdnvog3ngv;3oinv/

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
lOl

Ans 2:

Class : Class 9

Ans 3:

Class : Class 9

Ans 4:

Class : Class 7
:) :o

Ans 5:

Class : Class 9
answer is B.

Ans 6:

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

Ans 7:

Class : Class 10

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Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 5

Ans 3:

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

Ans 4:

Class : Class 5

Ans 5:

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

Ans 6:

Class : Class 6

Ans 7:

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

Ans 8:

Class : Class 5

Ans 9:

Class : Class 5

Ans 10:

Class : Class 6

Ans 11:

Class : Class 4

Ans 12:

Class : Class 6

Ans 13:

Class : Class 9

Ans 14:

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 15:

Class : Class 5

Ans 16:

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

Ans 17:

Class : Class 7

Ans 18:

Class : Class 5

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