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nekit [7.7K]
3 years ago
6

Which subatomic particle has the least mass?

Physics
1 answer:
goblinko [34]3 years ago
6 0

Answer:

electron

Explanation:

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Explanation:

In case of oil slick a thin layer of oil is formed on water . This thin layer creates a rainbow of colour . The phenomenon is due to interference of light waves , one reflected from the upper surface of oil and the other reflected from the lower surface of the oil.

For formation of bright colour

2 μ t = ( 2n + 1 ) λ / 2

μ is refractive index of oil ,  t is thickness of oil layer  λ is wave length of light falling on the layer .

given μ = 1.2 ,   λ = 750 x 10⁻⁹   ,

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2 μ t = ( 2n + 1 ) λ / 2

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λ = 4μ t

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= 1200 nm .

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