National Science Olympiad Forum By SOF Olympiad Trainer - Page 443

User Forum

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
You have to specify if waxing or waning crescent

Post Your Answer

Subject :NSO    Class : Class 8

Ans 1:

Class : Class 6
answer should be b because X will also lit up

Ans 2:

Class : Class 6
The answer should be B as it will be closed circuit

Ans 3:

Class : Class 9
yes i too did B

Ans 4:

Class : Class 8
logically it should be B but sof says otherwise. why ????

Ans 5:

Class : Class 8
Please explain it. I am also confused about the answer. I myself did B.

Ans 6:

Class : Class 8

Ans 7:

Class : Class 7
I too am confused as current will also flow through both the bulbs when circuit is closed. It will pass through the switch first and hence lighting up bulb Y.

Ans 8:

Class : Class 3
Option D is correct because current prefers the path that offers less resistance. The bulb provides resistance whereas the switch when closed does not. Hence correct answer is D

Ans 9:

Class : Class 9
Yess,my answer was B also

Ans 10:

Class : Class 9

Ans 11:

Class : Class 8

Ans 12:

Class : Class 8
The answer key says that X will not light up,but why?

Ans 13:

Class : Class 8
The answer is B

Ans 14:

Class : Class 8
It must be B.The current finds a more direct path to Y, Making it brighter.But the current still reaches X because there is still a path. SOF Says otherwise.

Ans 15:

Class : Class 10
b

Ans 16:

Class : Class 8
X will light up... I think it's incorrect....

Ans 17:

Class : Class 6
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb is correct as current will flow though X but I do feel that current will prefer less resistant path so D can also be correct

Ans 18:

Class : Class 8
answer should be B

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
no chart no answer

Ans 2:

Class : Class 7

Ans 3:

Class : Class 9
The answer is c

Ans 4:

Class : Class 3
D

Ans 5:

Class : Class 4
d

Ans 6:

Class : Class 8
Sorry all, I had not read the question well.😞😞

Ans 7:

Class : Class 7
Sorry , my brother changed the C into D . It should be C only !

Ans 8:

Class : Class 7
I was a bit confused between C and D

Ans 9:

Class : Class 4
ans is D so easy

Ans 10:

Class : Class 7

Ans 11:

Class : Class 7
It is a very serious thing for us that we are getting wrong answers from SOF . It should be D only !

Ans 12:

Class : Class 8

Ans 13:

Class : Class 4
Low High Many Many

Ans 14:

Class : Class 9

Ans 15:

Class : Class 6
The answer is d

Ans 16:

Class : Class 7

Ans 17:

Class : Class 6
Veer Sehrawat, how c, the question says which town is located near an unpolluted river not a polluted river.

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9

Ans 2:

Class : Class 8
NA

Ans 3:

Class : Class 7

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Which of the following is NOT hidden in the given word grid?


AStructure present in polar bear that protects it from cold and a structure present in Scoliodon that enables it to breathe underwater.
BBehavioural adaptation that helps Siberian cranes to escape cold winters of their homeland and structural adaptation that helps them to fly.
CPhenomenon wherein chameleon blends with its surrounding by changing its skin colour to remain unnoticed by its prey.
D Phenomenon wherein a leaf insect externally resembles a plant leaf to remain unnoticed by its predator.


Ans 1:

Class : Class 7
Mocking or copying.

Ans 2:

Class : Class 8
😓😓copying

Ans 3:

Class : Class 8

Ans 4:

Class : Class 8
What is mimicry?

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
The answer D is correct. Magnetic field moves from North to South, and if you follow the direction of the compasses, you will see that this theory is true.

Ans 2:

Class : Class 6

Ans 3:

Class : Class 9

Ans 4:

Class : Class 6

Ans 5:

Class : Class 10
The correct and is D as the magnetic field moves from North to south

Ans 6:

Class : Class 8

Ans 7:

Class : Class 9

Post Your Answer