National Science Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1

The correct answer is B

The gas having lowest boiling point i.e., highly volatile will be distilled out first and the gas having highest boiling point i.e., least volatile will be distilled out at the last. So, the correct order of gases distilling out is neon, nitrogen, oxygen, krypton.


Ans 2:

Class : Class 9
Option b

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
not understanded

Ans 3: (Master Answer)

Class : Class 1

The correct answer is B

Here forces X, Y and Z are Friction, Magnetic force and Gravitational force. It is friction which opposes or slows down moving objects


Post Your Answer

Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1

Dung beetle is a helpful insect that helps in dispersing dung


Ans 2:

Class : Class 3
The Correct answer is A dungbeetles, as they help us in removing dung from the road

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1

Please contact us at info@sofolympiadtrainer.com or call us on +91-9953204707,+91-9821945292


Ans 2:

Class : Class 8
KINDLY LEARN ENGLISH GRAMMAR FIRST

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
C

Ans 2:

Class : Class 6
c

Ans 3:

Class : Class 5
DBACGBANGGFCDGDAAJNNC

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
a tendril is a modified stem,leaf or petiole with small spring like structure that is used to give support to plants.

Ans 2: (Master Answer)

Class : Class 1

A tendril is a specialized stem, leaves or petiole with a threadlike shape that is used by climbing plants for support and attachment 


Post Your Answer

Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

Class : Class 1

The correct answer is D

Current carrying wire produces magnetic field, but direction of magnetic field on the given points X and Y are different. 
 
This is found by right hand thumb rule. So magnetic compasses on X and Yexperience magnetic force of same magnitude but in opposite directions. Hence, the needles will deflect in opposite directions.


Post Your Answer

Subject :NSO    Class : Class 10

Three closed similar coils P, Q and R are placed such that their planes are parallel. In the coil P and R, current of same magnitude flows as shown in the figure. Coils Q and R are static while coil P is moved with a uniform speed towards Q, then


A Clockwise current will be induced in coil Q, as seen by eye
B Anti-clockwise current will be induced in coil Q, as seen by eye.
C No current will flow in coil Q
D Current induced in coil Q will be equal to P and R, but in opposite direction, hence net current in Q will be zero.


Ans 1: (Master Answer)

Class : Class 1

The correct answer is B

Coil P is moved with a uniform speed towards Q while R is static. Due to the current in P, magnetic field is from right to left. When P is moved towards Q, magnetic lines passing through Q (from right to left) will increase, i.e., magnetic flux passing through Q will increase. Therefore, current will be induced in Q. The induced current will have such a direction that it gives a magnetic field opposite to that passing through Q due to current in P. Thus, anticlockwise current will be induced in coil Q, opposite to the direction of current in coil P.


Post Your Answer

Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

Plants make food with this---chlorophyll-------and the process in which they make it is called----photosynthesis---


Ans 2:

Class : Class 3
PLANTS MAKE FOOD WITH LEAVES, AND THE PROCESS IS CALLED PHOTOSYNTHESIS.

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1

The atomic number and the atomic mass of iridium are 77 and 192.217 u ± 0.003 u respectively


Post Your Answer