National Science Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
It's A.When light travels from a denser to rarer medium,it bends TOWARDS the normal(Check normal in solution).Hence,answer is A.

Ans 2:

Class : Class 8
Me too... I also think that the correct option will be C

Ans 3:

Class : Class 8
correct answer is C as the ray would refract if its passing from a rarer to denser medium.

Ans 4:

Class : Class 9
I too think correct option is C

Ans 5:

Class : Class 9
correct answer is C

Ans 6:

Class : Class 6
After checking the Snell's law, I found the answer to be C...But it says the correct answer is A

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 5

Ans 3:

Class : Class 4
C

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
D

Ans 2:

Class : Class 4
briany

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
B

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
B is the right answer.

Ans 2:

Class : Class 3
The correct answer is B.

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
B . (2.1cm)

Ans 2:

Class : Class 3
B . (2.1cm)

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
The correct answer is C

Ans 2:

Class : Class 4
the solution is correct as this is not combination this is just simple paring that is converted to handshakes . answer is C

Ans 3:

Class : Class 4
Answer should be A as 6 x 5 =30

Ans 4:

Class : Class 4
C 15

Ans 5:

Class : Class 4
A 30

Ans 6:

Class : Class 4
A 30

Ans 7:

Class : Class 4
no repetition of same pairs ( like AB and BA )

Ans 8:

Class : Class 5
A

Ans 9:

Class : Class 4

Ans 10:

Class : Class 4

Ans 11:

Class : Class 4
Answer is A

Ans 12:

Class : Class 5
a

Ans 13:

Class : Class 4
Vighneshwar , Bhavya and Anika can you tell me how the answer is A ??? Why are you telling the wrong answer ???

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
D

Ans 2:

Class : Class 4
the correct ans is D

Post Your Answer

Subject :NSO    Class : Class 8

In which of the following agricultural setups, the nutrient needs of one crop are fulfilled by the other crop?


A
B
C
D


here,groundnut soyabeans and wheat all are legumes which have nodules at their roots for rhizobium bacteria, which fixes atmospheric N2 --->nitrates.so, only rice crop's requiremnts need to be fulffilled by any of the other crops.So,the correct diagram must show rice and any one other crop(because the question reads "other crop" not crops)So ideally,D should be the correct option. How is C right boggles me.

Ans 1:

Class : Class 8

Ans 2:

Class : Class 4
It should be a

Ans 3:

Class : Class 8
please explain

Ans 4:

Class : Class 8

Ans 5:

Class : Class 8
answer should be a

Post Your Answer

Subject :NSO    Class : Class 6

Read the following statements (i) - (v), each with one or two blanks.

(i) (A) have liquid skeletons.
(ii) The last (B) pairs of ribcage bones that are not joined to the breast bone are called (C).
(iii) The longest bone of human body is (D).
(iv) (E) is strong, flexible band that holds bones together at the joints.
(v) (F) is a smooth elastic tissue that covers and protects the ends of long bones at the joints.
Which of the following options correctly fills any two of these blanks?

A (A)-Earthworm, (D)-Humerus
B (E)-Ligament, (f)-Cartilage
C (B)-Four, (C)-Floating ribs
D (E)-Tendon, (f)-Ligament


B

Ans 1:

Class : Class 6
The correct answer is option B . Clearly , the ligaments hold the bones together at joints and cartilage acts as a cushion that acts as a shock absorbent .

Ans 2:

Class : Class 6

Post Your Answer