National Science Olympiad Forum By SOF Olympiad Trainer - Page 523

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
Given correct answer and explanation do not match...please rectify...

Ans 2:

Class : Class 10

Ans 3:

Class : Class 7
they aren't giving the answer and the solution same in some papers

Ans 4:

Class : Class 10
clear objection

Ans 5:

Class : Class 6
Although the explanation is correct, it does not match the answer

Ans 6:

Class : Class 4
What is this? Answer and solution are completely different, they are not matching!

Ans 7:

Class : Class 6

Ans 8:

Class : Class 3
ayush u are right!!!!!!!!!!!!!!!

Ans 9:

Class : Class 6
The option selected here is wrong.

Ans 10:

Class : Class 7
why arent they changing the answer

Ans 11:

Class : Class 9
YES , their answer is not matching with their solution !!

Ans 12:

Class : Class 6
The answer does not match with the solution. There should be a change in the answer.

Ans 13:

Class : Class 6
NA

Ans 14:

Class : Class 8
Pls rectify.

Ans 15:

Class : Class 9

Ans 16:

Class : Class 7

Ans 17:

Class : Class 9
The correct is NSN

Ans 18:

Class : Class 3

Ans 19:

Class : Class 7
Answer and solution are completely different, they are not matching!The solution is correct, but their ans is wrong

Ans 20:

Class : Class 8
The ans is not matching!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 21:

Class : Class 6
correct option is C, not B. Please make correction.

Ans 22:

Class : Class 4

Ans 23:

Class : Class 9
yes !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 24:

Class : Class 9
please explain. your solution doesn't match the correct answer provided by you.

Ans 25:

Class : Class 5

Ans 26:

Class : Class 7
There is no option only for the answer they had provided us with, gave the correct explanation but the need to correct the answer as well.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10
According to definition - answer would be 0.2 s

Ans 2:

Class : Class 10
the answer is wrong , it should be 0.2s. please kindly provide the solution to this question.

Ans 3:

Class : Class 6

Ans 4:

Class : Class 8

Ans 5:

Class : Class 8
I think this answer is wrong. It should be 0.2 seconds, according to the definition of a Time Period in oscillatory motion.

Ans 6:

Class : Class 7
The time taken to complete one oscillation - a left swing and a right swing - is called the time period (T); it is measured in seconds.A swing takes 5 seconds to complete 25 oscillations. That means it would take 1 second to complete 25 ÷ 5 = 5 oscillations. That also means it would take 1 ÷ 5 = 0.2 seconds to complete 1 oscillation.So, the time period of the swing is 0.2 seconds. Hence, the right answer is Option C.

Ans 7:

Class : Class 7
wrong answer. should be 0.2s

Ans 8:

Class : Class 6
The answer should be 0.2 s

Ans 9:

Class : Class 7

Ans 10:

Class : Class 6
The answer has to be 0.2 seconds(5/25). Pls correct

Ans 11:

Class : Class 10
answer is wrong it should be 0.2 s

Ans 12:

Class : Class 9
the answer is wrong

Ans 13:

Class : Class 7
I THINK IT COMPLETES 25 OSCILLATIONS IN 5s

Ans 14:

Class : Class 7
The answer is wrong. It is 0.2

Ans 15:

Class : Class 8
please explain the answer

Ans 16:

Class : Class 7
The answer seems to be wrong. 5 seconds to complete 25 oscillations. That means for one oscillation it is 5/25 = 0.2 seconds. 'Period' usually means one complete oscillation that is 0.2 seconds and that is not given.

Ans 17:

Class : Class 8
According to definition - answer would be 0.2 s

Ans 18:

Class : Class 4
Answer is wrong

Ans 19:

Class : Class 7
The swing completes 25 oscillations in 5 seconds So, It will complete 1 oscillation in 5/25 seconds = 0.2 secondsSo, the time period of the swing is 0.2 seconds. Hence, the right answer is Option C.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
option b is the correct answer

Ans 2:

Class : Class 7

Ans 3:

Class : Class 9
i checked in google. ans is a

Ans 4:

Class : Class 8
option a

Ans 5:

Class : Class 9

Ans 6:

Class : Class 7
Option B

Ans 7:

Class : Class 7

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4
b is answer

Ans 2:

Class : Class 6
Moon will get no sunlight.THIS ISN’T POSSIBLE!!!!!

Ans 3:

Class : Class 5
This is absolutely incorrect. SOF should verify such answers. The question is about the phase of the moon. Even if it is a lunar eclipse it falls on a full moon day. The answer is B

Ans 4:

Class : Class 6
if the answer is c, then they would have mentioned that it is a lunar eclipse. so it should be b

Ans 5:

Class : Class 6
Yes!I checked it on Google!IT IS FULL MOON!!!!!!????

Ans 6:

Class : Class 4
only c

Ans 7:

Class : Class 3
C

Ans 8:

Class : Class 5
it is b

Ans 9:

Class : Class 8

Ans 10:

Class : Class 8

Ans 11:

Class : Class 6
how is this possible

Ans 12:

Class : Class 5
THE MOON IS NOT STRAIGHT TO THE EARTH. MOON HAS SLIGHT SLANTING REVOLUTION. THAT IS WHY WE HAVE DIFFERENT PHASES OF THE MOON. IF THE MOON IS AT THE POSITION OF..... SUN---EARTH---MOON.......SO THAT WILL BE FULL MOON. FULL MOON IS GIVENN AT OPTION B. SO MOST OF US LIKE ME DID B BUT IT IS SHOWING C AS THE CORRECT ANSWER. BUT AS I THINK THAT EVERYTHING HAS A REASON.1. THE SOLUTION IS THE MEANINGFUL WAY IT IS GOOD. BUT IF YOU OPPOSE THIS, SO 2. THAT THE CHART IS SHOWING THAT....... SUN-----EARTH-----MOON. SO ACCORDING TO THE CHART, IT IS A LUNAR ECLIPSE IN WHICH THE MOON IS COMPLETLY BLACK. SO OPTION C HAS A REASON. SHARE YOUR IDEAS ALSO.

Ans 13:

Class : Class 7

Ans 14:

Class : Class 5
According to any phases of the moon diagram, a full moon will be behind the Earth. Even lunar eclipse will be on a full moon day . New moons position will be the opposite of a full moon,i.e. between the earth and sun

Ans 15:

Class : Class 5
IT SHOULD NOT BE C! B IS THE RIGHT ANSWER. IF SUN EARTH MOON= FULL MOON. IF SUN MOON EARTH = NEW MOON. .

Ans 16:

Class : Class 5

Ans 17:

Class : Class 9
How come it is C ? This is insane!!!

Ans 18:

Class : Class 1
I think that c is correct as the moon is behind the earth , so there will be no light reaching the moon . Thus, it will be new moon .

Ans 19:

Class : Class 5
The answer is b not c

Ans 20:

Class : Class 5
It is a full moon and I had enough of your mistakes SOF now, I am going to beat you people.

Ans 21:

Class : Class 8
It will cause full moon ???

Ans 22:

Class : Class 7
It is showing C as the answer to this question

Ans 23:

Class : Class 5
Full moon occurs when light is spread all over the surface of the moon...but in the picture the moon is blocked by earth and the moon will remain dark.Hence,the answer is (c) new moon

Ans 24:

Class : Class 5

Ans 25:

Class : Class 6
but how?

Ans 26:

Class : Class 9
c

Ans 27:

Class : Class 6
moon does not have its own light it reflects of sun and as it is completely blocked by earth the suns light does not reflect and we do not see any phase of the moon .hence ans is c

Ans 28:

Class : Class 6
b) IT SHD BE FULLLLLLLLLLLLLL MOOOOOOOOOOOOOON!?!??!

Ans 29:

Class : Class 5
This is wrong i thinkThe answer should be C

Ans 30:

Class : Class 4

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
R is at a slightly higher depth

Ans 2:

Class : Class 8
The three dots are not at the same depth. P and Q are at the same depth, but R is slightly above both of them.

Ans 3:

Class : Class 8
r is slightly above them so it has less pressure and there is a block above p so the answer is (C)

Ans 4:

Class : Class 8
I agree, I feel they are different

Ans 5:

Class : Class 8

Ans 6:

Class : Class 9
doubtthey aren't at the same depthlook carefully sof

Ans 7:

Class : Class 10
yes they aren't at same depth

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
THE ANSWER IS B

Ans 2:

Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Gravitational pull of the moon is the correct answer.

Ans 2:

Class : Class 5
the tide happens due to moon's gravity

Ans 3:

Class : Class 7
The answer is C

Ans 4:

Class : Class 5
C

Ans 5:

Class : Class 5
My answer is C. I have written it wrong as A

Ans 6:

Class : Class 7

Ans 7:

Class : Class 8
correct answer is c graavitional pull by earth

Ans 8:

Class : Class 9
C for cat

Ans 9:

Class : Class 7
C

Ans 10:

Class : Class 7

Ans 11:

Class : Class 7
an

Ans 12:

Class : Class 7
C

Ans 13:

Class : Class 7
The answer is C because tides are caused due to Gravitational pull of moon

Ans 14:

Class : Class 7
c

Ans 15:

Class : Class 6
C

Ans 16:

Class : Class 1
Tides are caused by the gravitational pull of the moon

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
i am confused i am confused to opt between C

Ans 2:

Class : Class 10
OPTION C AND OPTION D ARE SAME .SO IT CAN BE C ALSO .THE QUESTION IS WRONG .THE QUESTION NEEDS CORRECTION ........

Ans 3:

Class : Class 5

Ans 4:

Class : Class 6

Ans 5:

Class : Class 7

Ans 6:

Class : Class 5
fooliesh

Ans 7:

Class : Class 2

Ans 8:

Class : Class 8

Ans 9:

Class : Class 8
option D isn't having stapler and seesaw

Ans 10:

Class : Class 9
option d has the same answer as option c

Ans 11:

Class : Class 5
What is the difference between option C and D

Ans 12:

Class : Class 6

Ans 13:

Class : Class 7
This question make absolutely no sense.

Ans 14:

Class : Class 4

Ans 15:

Class : Class 7

Ans 16:

Class : Class 7
ya! option C and D are the SAME!

Ans 17:

Class : Class 9
C AND D ARE THE SAME YOU ARE RIGHT

Ans 18:

Class : Class 8

Ans 19:

Class : Class 6
I mean wwwhhhaaattttt???? C AND D ARE SSSAAAMMMEEE!!!!

Ans 20:

Class : Class 7
There's no difference between the option C and D .

Ans 21:

Class : Class 6
option c

Ans 22:

Class : Class 8
both c and d are the same ...................... how can they show option d is stapler and seesaw.......

Ans 23:

Class : Class 8
????????option C and D?

Ans 24:

Class : Class 3
C and d are same………

Ans 25:

Class : Class 6
option c

Ans 26:

Class : Class 7
Master answer needed!

Ans 27:

Class : Class 9

Ans 28:

Class : Class 6

Ans 29:

Class : Class 6
both option c and d are the same.

Ans 30:

Class : Class 8
options c and D are same. question needs correction

Ans 31:

Class : Class 3
you are right both the options are the same

Ans 32:

Class : Class 9
YES

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