National Science Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :NSO    Class : Class 9

Fill in the given blanks by choosing an appropriate option.
A sound of single frequency is called a _(i)_ . The sound produced due to a mixture of several frequencies is called a _(ii)_ and is pleasant to listen. Sound propagates through a medium at a finite speed but the speed of sound _(iii)_ as it propagates from solid to gaseous medium. In any medium as we _(iv)_ the temperature, the speed of sound also _(v)_.

(i) (ii) (iii) (iv) (v)
A Note Tone Increases Decrease Decreases
B Note Tone Decreases Increase Increases
C Tone Note Decreases Increase Increases
D Tone Note Increases Increase Increases


Post Your Answer

Subject :NSO    Class : Class 5

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 7

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1

D

Solution is the liquid mixture in which the minor component (the solute) is dissolved in the major component (the solvent). So, when Pinki made lemonade by dissolving lemon juice and little sugar in water, it means lemon juice and sugar are the solutes, Water is the solvent, and lemonade is the solution.


Ans 2:

Class : Class 1

Post Your Answer

Subject :NSO    Class : Class 7

Post Your Answer

Subject :NSO    Class : Class 2

Ans 1:

Class : Class 2
B

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1

B


Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
answer should be A as the animals will escape from the holes in the wooden cover in setup 3 and 4

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8

Post Your Answer