Please select a subject first
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Fill in the blank
To light a table lamp and to run a refrigerator, we use ______ as the source of electricity.
Concept: undefined >> undefined
Select the correct alternative :
We can distinguish a shrill sound from a flat sound by its
Concept: undefined >> undefined
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Select the correct alternative :
We can hear sound of frequency
Concept: undefined >> undefined
Select the correct alternative :
Wavelength is measured in
Concept: undefined >> undefined
Match the following
| Column A | Column B |
| (a). Human body | (1). electric bell |
| (b). Silk thread | (2). current |
| (c). Charge in motion | (3). conductor |
| (d). soft iron | (4). electromagnet |
| (e) . Electromagnet | (5). insulator |
Concept: undefined >> undefined
Select the correct alternative
A freely suspended magnet rests in
Concept: undefined >> undefined
What do you mean by a vibratory motion?
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Name the three modes of transfer of heat.
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The bees do not have voice-boxes. How do they produce sound ?
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Name the mode of transfer of heat in the following :
(a) solid,
(b) liquid,
(c) gas
(d) vacuum
Concept: undefined >> undefined
State two properties of a bar magnet ?
Concept: undefined >> undefined
How will you test whether a given rod is a magnet or not ?
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How will you test whether a given rod is made of iron or not?
Concept: undefined >> undefined
You are given two similar bars. One is a magnet and the other is of soft iron. How will you distinguish and identify them ?
Concept: undefined >> undefined
You are given a magnet. How will you use it to find north-south direction at a place?
Concept: undefined >> undefined
Describe a simple experiment to illustrate that like poles of two magnets repel each other while the unlike poles attract ?
Concept: undefined >> undefined
