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svlad2 [7]
3 years ago
6

What is most likely the color of the light whose second-order bright band forms an angle of 13.5° if the diffraction grating has

175 lines per mm?
Physics
2 answers:
mash [69]3 years ago
8 0

Answer:

the color is red.

never [62]3 years ago
7 0
The most likely color is red.
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The answer correct is C:The cell is most likely prokaryotic ,but it could be eukaryotic since some unicellular are eukaryotic.


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3 years ago
According to Newton’s first law of motion, when will an object at rest begin to move?
soldi70 [24.7K]

2. When an unbalanced force acts upon it

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3 years ago
If a football player has more mass they will also have more ______ ?<br> Fill in the blank
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3 0
3 years ago
A scientist notices that an oil slick floating on water when viewed from above has many different rainbow colors reflecting off
Semenov [28]

Answer:

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   ,

2 x 1.2 t = ( 2n + 1 ) 750 x 10⁻⁹ / 2

For minimum thickness n = 0

2.4 t = 375 x 10⁻⁹

t = 156.25 n m

B ) If the refractive index of layer of medium below oil is less than that of oil , the condition of formation of colour changes

The new condition is

2 μ t = n λ

2  x 1.5 t  = 750 nm ,         n = 1 for minimum wavelength .

t = 250 nm

C ) Light mostly transmitted means dark spot is formed at that point .

For that to be observed from water side , the condition is

2 μ t = ( 2n + 1 ) λ / 2

λ = 4μ t / ( 2n + 1 )

For maximum wavelength n = 0

λ = 4μ t

= 4 x 1.5 x 200 nm

= 1200 nm .

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3 years ago
When humans started launching rockets into outer space, they needed to make certain the rockets had enough power to escape Earth
GaryK [48]
Tha answer has to be a
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3 years ago
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