National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1
Kindly mention your query

Ans 2:

Class : Class 1
The correct answer is that Rekha has one cousin.

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Subject :NSO    Class : Class 6

Consider the following statements (i) - (iv) and select the option that correctly identifies true (T) and false (F) ones.
(i) Sucrose is the sugar found in milk.
(ii) Saturated fats are solids at room temperature while unsaturated fats are liquids.
(iii) Fat soluble vitamins are not stored in our body and need to be regularly supplied through food.
(iv) Vitamin C is very sensitive to heat and is easily destroyed during cooking.
(v) Our body can make two vitamins, i.e., vitamin K and vitamin D.

(i) (ii) (iii) (iv) (v)
A T F F T T
B F T F T T
C T T F T T
D F F F T T


Ans 1: (Master Answer)

Class : Class 1
Kindly mention your query

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
Please mention your query

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
42

Ans 2:

Class : Class 7
It's 42 guys

Ans 3:

Class : Class 7
The answer is 42!!!

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Subject :NSO    Class : Class 10

In the following figures, optical instruments are placed inside boxes (A) and (B). Which of the following options is correct for these?


A In (A), the incident rays are diverged after refractions, so lens is concave.
B In (B), the incident rays are converged after refraction so mirror is convex.
C In (A), the incident rays are diverged after refraction so mirror is convex.
D In (B), the incident rays are converged after refraction so lens is concave.


Aren't both options A and B correct?

Ans 1: (Master Answer)

Class : Class 1
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 6
the ans will be c

Ans 2:

Class : Class 6
WHAT IS THE CLASS THIS IS LIKE MATHS

Ans 3:

Class : Class 6
WHAT IS THE CLASS THIS IS LIKE MATHS

Ans 4: (Master Answer)

Class : Class 1
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.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
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 2:

Class : Class 6
c

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Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1
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 : Class 1
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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Subject :NSO    Class : Class 7

Read the given passage carefully and answer the question

The phenomenon in which a bird or other animal moves from one place to another in one season, and returns again in a different season is called migration. It is an adaptation to escape the harsh conditions of their normal habitat so as to survive.

The __(i)__ flies from its native place in Russia to places like __(ii)__ in Rajasthan and __(iii)__ in Haryana during a particular season.

It stays in India for a few months and then goes back in __(iv)__ season. The general name given to birds like these is __(v)__ birds. Select the correct sequence of words to fill up the blanks in the above passage.

Which of the following is the probable method these migratory birds use to travel to the same place year after year?

(i) (ii) (iii) (iv) (v)
A Toucan Sultanpur Bharatpur Autumn Adaptatory
B Siberian
crane
Bharatpur Sultanpur Winter Migratory
C Arctic
tern
Bharatpur Sultanpur Spring Migratory
D Siberian
crane
Sultanpur Bharatpur Summer Adaptatory


Ans 1:

Class : Class 7
The answer is C!!!

Ans 2:

Class : Class 7
The answer is C!!!

Ans 3: (Master Answer)

Class : Class 1
Kindly mention your query

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 3

Ans 2:

Class : Class 5
B

Ans 3:

Class : Class 3

Ans 4:

Class : Class 3

Ans 5:

Class : Class 3

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