National Science Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :NSO    Class : Class 8

Read the given passage and fill in the blanks by choosing an appropriate option.
Non-metals find wide applications in industries. For example i is used in electrodes, ii is used in welding metals, iii is used to make antiseptic creams while iv is used as a preservative due to its inert nature.

(i) (ii) (iii) (iv)
A Carbon hydrogen chlorine Phosphorus
B Hydrogen oxygen chlorine nitrogen
C Graphite hydrogen sulphur nitrogen
D Phosphorus sulphur oxygen carbon


b is the ans

Ans 1:

Class : Class 8
b is the answer

Post Your Answer

Subject :NSO    Class : Class 9

A cyclist starts from centre O and reaches at R along the path OPR as shown in graph. What would you conclude from the velocity-time graph of the cyclist from the given graph?
image

A Velocity changes linearly if acceleration is changing non-linearly.
B Velocity becomes zero if acceleration becomes zero.
C Velocity changes non-linearly if acceleration is changing linearly.
D Velocity becomes uniform if acceleration becomes infinite.


Give a nice sol pls

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Answer is option A

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Option -D is the correct answer.

Ans 2:

Class : Class 5
mnbvgf

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
answer is option c

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 2

Post Your Answer

Subject :NSO    Class : Class 3

Post Your Answer

Subject :NSO    Class : Class 10

You are given four sources of light each one providing a light of a single colour - red, blue, green and yellow. Suppose the angle of refraction for a beam of yellow light corresponding to a particular angle of incidence at the interface of two media is 90°. Which of the following statements is correct, if the source of yellow light is replaced with that of other lights without changing the angle of incidence?

A The beam of red light would undergo total internal reflection.
B The beam of red light would bend towards normal while it gets refracted through the second medium.
C The beam of blue light would undergo total internal reflection.
D The beam of green light would bend away from the normal as it gets refracted through the second medium.


Post Your Answer