National Science Olympiad Forum By SOF Olympiad Trainer - Page 660

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
option c

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6
it could be b too as it is not clear that if it has any problem in it like hazy r said if its clear

Ans 4:

Class : Class 8
No, the right answer is opt. c because if II is translucent, then it will NOT GET A CLEAR BRIGHT SPOT but a hazy one.

Ans 5:

Class : Class 9
IF [I] WILL BE TRANSPARENT ,AS WE KNOW THAT THE MATERIALS WHICH ALLOW LIGHT TO PASS THROUGH THEM ARE CALLED TRANSPARENT SO IF WE CUT OUT A SQUARE TRANSPARENT SHEET FROM A ROLL OF TRANSPARENT ,SURELY THE LIGHT PATCH WILL PASS THROUGH[II]THEN THE [II] MATERIAL SHOULD BE SOMETING WHICH CAN NOT ALLOW LIGHT TO PASS TROUGH IT IT SHOULD BE OPAQUE AND THE LAST SQUARE[III] CAN BE MADE OUT FROM ANY MATERIAL,THUS IT WILL NOT CHANGE THE ANSWER.SO WE CONCLUDE THE CORRECT ANSWER IS C

Ans 6:

Class : Class 7
to my knowledge the ans is c

Ans 7:

Class : Class 7
to my knowledge the ans is c

Ans 8:

Class : Class 6
correct answer is C

Ans 9:

Class : Class 9
c

Ans 10:

Class : Class 9
c

Ans 11:

Class : Class 6
its c as transparent object 1 will allow light ti pass. opaque object 2 wont allow anything to pass and will make a patch of light and the last could be anything

Ans 12:

Class : Class 8
No, the right answer is opt. c because if II is translucent, then it will NOT GET A CLEAR BRIGHT SPOT but a hazy one.

Ans 13:

Class : Class 9
SOF I had given C how you show that I gave B???

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 5
Lata hai sab pagal ho gaya hai answer is b

Ans 3:

Class : Class 5
Thanks Again Ishit, Riddhiman, and Avyukt!🙏

Ans 4:

Class : Class 4
The answer has to be D.

Ans 5:

Class : Class 5
That answer is D as b,a and b are the best conductors of heat so the heat would pass through b,a and b faster and it is balanced.Nice question.

Ans 6:

Class : Class 5

Ans 7:

Class : Class 4
The answer can either be B or D.

Ans 8:

Class : Class 4
ans is b

Ans 9:

Class : Class 5

Ans 10: (Master Answer)

Class :
Kindly mention your query

Ans 11:

Class : Class 4

Ans 12:

Class : Class 4
there is no necessity of mentioning the words: "descending order". This is contradictory to the statement: A>B>C>D. Hence the question is wrong.

Ans 13:

Class : Class 7
That answer is D as b,a and b are the best conductors of heat so the heat would pass through b,a and b faster and it is balanced.Nice question.

Ans 14:

Class : Class 5
class 4

Ans 15:

Class : Class 6
Ishit and Riddhiman thank you for clearing my doubts

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Subject :NSO    Class : Class 2

Ans 1:

Class :
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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Please explain how unsaturated fats are liquids at room temperature

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9
My query is, I didn't understand anything. Pls explain me

Ans 4: (Master Answer)

Class :
Kindly mention your query

Ans 5:

Class : Class 9
ans is b

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class :
Please mention your query

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 3
It's 42 guys

Ans 2:

Class :
The answer is 42!!!

Ans 3:

Class :
42

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Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

Class :
Here, the correct answer is A. In (A), the incident rays are diverged after refraction, so the lens is concave and in (B), the incident rays are converged after refraction, so the lens is convex.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10
i did not understand the question

Ans 2:

Class : Class 8

Ans 3:

Class : Class 7
the ans will be c

Ans 4: (Master Answer)

Class :
Here, the answer is C. Displacement is the shortest distance covered by a body. In a circular path, the distance between the initial point (Here=P) and the final point (Here=Q) will give you the displacement. Here, Shortest distance between P and Q is PO + OQ = a + a = 2a Hence, the displacement of the cyclist would be 2a.

Ans 5:

Class : Class 7
in short words this was easy

Ans 6:

Class : Class 8
thanks admin for the explanation

Ans 7:

Class : Class 9
WHAT IS THE CLASS THIS IS LIKE MATHS

Ans 8:

Class : Class 9
WHAT IS THE CLASS THIS IS LIKE MATHS

Ans 9:

Class : Class 6
Why are there maths questions in science paper?????

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
c

Ans 2:

Class : Class 9

Ans 3:

Class :

Ans 4:

Class :
c

Ans 5:

Class : Class 7

Ans 6:

Class : Class 9
C is correct

Ans 7:

Class : Class 10

Ans 8:

Class : Class 7
ty

Ans 9:

Class : Class 6
c

Ans 10:

Class : Class 7
c

Ans 11:

Class : Class 10

Ans 12:

Class : Class 8

Ans 13:

Class : Class 10
The answer should be (d),not (c).

Ans 14:

Class :
Answer is C because Y is minerals.Minerals are inorganic.Excess consumption of minerals does not cause obesity.So they have told to mark incorrect answer.Therefore C is correct

Ans 15:

Class : Class 7
The answer is c

Ans 16:

Class : Class 7

Ans 17:

Class : Class 8

Ans 18:

Class : Class 9

Ans 19:

Class : Class 9
c

Ans 20:

Class : Class 9
Can anyone explain what 'inorganic elements' are?

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Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Class :
Here, the answer is B. Since in a magnetic needle the arrow head is the North Pole, it will point towards the South Pole of the left hand side magnet and the other end of the magnetic needle (i.e; South Pole) will point towards the North Pole of the right hand side magnet.This is because like poles repel and unlike poles attract each other. Hence,the polarity of the end P of the right hand side magnet is North.

Ans 2: (Master Answer)

Class :
Here, the answer is B. Since in a magnetic needle the arrow head is the North Pole, it will point towards the South Pole of the left hand side magnet and the other end of the magnetic needle (i.e; South Pole) will point towards the North Pole of the right hand side magnet.This is because like poles repel and unlike poles attract each other. Hence,the polarity of the end P of the right hand side magnet is North.

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