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