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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1

B

Rohit tried to push a wall but failed to do so. that means he applied some force in the wall, but the wall did not move. So, some energy is spent, but no work is done.


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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1

A

Shadows move during the day, and their length changes. They are longest in morning and evening. They are shortest at noon. So, Option A is the right answer.


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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


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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 1

Ans 2: (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.


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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 2
B

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Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1

B


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