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4
|
The transfer of heat energy through special waves.
|
5
|
Natural radioactivity was discovered by
|
6
|
On a rainy day, small oil films on water show brilliant colours. This is due to
|
7
|
Sound of frequency below 20 Hz is called
|
8
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The force that results from two surfaces rubbing against one annother
|
9
|
Light year is a unit of
|
12
|
Young stars are called
|
13
|
Sound waves in air are
|
|
|
|
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1
|
primary building block of stars
|
2
|
Nuclear sizes are expressed in a unit named
|
3
|
M1/2L −3/2 is the dimension of
|
10
|
Magnetism at the centre of a bar magnet is
|
11
|
if two bodies of different masses initially at rest are acted upon by the same force for the same time then the both bodies acquire the same
|
|
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