National Science Olympiad Forum By SOF Olympiad Trainer - Page 684

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
D

Ans 2:

Class : Class 3
i m not getting the answer

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Subject :NSO    Class : Class 6

Ans 1:

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 2:

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 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 7
I agree with you

Ans 5:

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 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

Ans 8:

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

Ans 9:

Class : Class 6

Ans 10:

Class : Class 7
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Ans 11:

Class : Class 4
yes I also agree with you

Ans 12:

Class : Class 9

Ans 13:

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

Ans 14:

Class : Class 10
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Ans 15:

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 16:

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 17:

Class : Class 8

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
ya

Ans 2:

Class : Class 7
same

Ans 3:

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

Ans 4:

Class : Class 8
I ALSO AGREE WITH YOU ALL

Ans 5:

Class : Class 6
The answer is not B

Ans 6:

Class : Class 7
easy

Ans 7:

Class : Class 2

Ans 8:

Class : Class 7

Ans 9:

Class : Class 6

Ans 10:

Class : Class 7
NA

Ans 11:

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

Ans 12:

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

Ans 13:

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

Ans 14:

Class : Class 2

Ans 15:

Class : Class 7
easyyyyyyyyy

Ans 16:

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

Ans 17:

Class : Class 6
How in processes v condensation came?

Ans 18:

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

Ans 19:

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

Ans 20:

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 21:

Class : Class 6
I do agree with Bhabani prasad

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
yup

Ans 2:

Class : Class 5
Class :C

Ans 3:

Class : Class 5
The answer is C

Ans 4:

Class : Class 5
C

Ans 5:

Class : Class 6
6536e6w33346si7s7474r6ssxfge65eueskibidyohio fanomtax rizzler

Ans 6:

Class : Class 7

Ans 7:

Class : Class 8
The answer is C

Ans 8:

Class : Class 7
I prefer option C

Ans 9:

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

Ans 10:

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).

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Subject :NSO    Class : Class 5

Ans 1:

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 2:

Class : Class 5
Ans D ( Cow)

Ans 3:

Class : Class 5
The answer is D

Ans 4:

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 5:

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

Ans 6:

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

Ans 7:

Class : Class 8
Mammals do not have 3 eyes

Ans 8:

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

Ans 9:

Class : Class 8
Mammals do not have 3 eyes

Ans 10:

Class : Class 9

Ans 11:

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

Ans 12:

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

Ans 13:

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

Ans 14:

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 15:

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

Ans 16:

Class : Class 4

Ans 17:

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 18:

Class :
Ans is D

Ans 19:

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

Ans 20:

Class : Class 5
forehead? hahahahahahahahah

Ans 21:

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

Ans 22:

Class : Class 9
ydejkcdhbjxdjkdajkdsjhdasjhdajhsadhjdaj

Ans 23:

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

Ans 24:

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 25:

Class : Class 4

Ans 26:

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

Ans 27:

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

Ans 28:

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

Ans 29:

Class : Class 2

Ans 30:

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

Ans 31:

Class : Class 6
The answer is D.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4

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

Ans 4:

Class : Class 5
howwwwwwww ccccccccccc

Ans 5:

Class : Class 9
how is it B!?

Ans 6:

Class : Class 5
answer is c sof is wrong

Ans 7:

Class : Class 6
never use sof trainer they know nothing

Ans 8:

Class : Class 8
WHY YOU TYPE SO MANY C Ishaan

Ans 9:

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

Ans 10:

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 11:

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

Ans 12:

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

Ans 13:

Class : Class 7
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Ans 14:

Class : Class 5
correct ans is C

Ans 15:

Class : Class 5
how is it b

Ans 16:

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 17:

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

Ans 18:

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 19:

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

Ans 20:

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

Ans 21:

Class : Class 7
The ans should be C.

Ans 22:

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

Ans 23:

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 24:

Class : Class 2

Ans 25:

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 26:

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 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 6
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Ans 29:

Class : Class 10
CORRECT ANSWER SHOULD BE C

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
THE CORRECT ANSWER SHOULD BE 5492

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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 9

Ans 2:

Class : Class 7
:) :o

Ans 3:

Class : Class 9
answer is B.

Ans 4:

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

Ans 5:

Class : Class 10

Ans 6:

Class : Class 9

Ans 7:

Class : Class 7
lOl

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