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wlad13 [49]
3 years ago
12

How are the lengths of the sides of the triangle and the measure of its angles related? 5cm,7cm,10cm.

Mathematics
2 answers:
abruzzese [7]3 years ago
7 0
In the triangle a larger angle lies opposite the larger side.
If given ΔABC, when AB=5 cm, BC=7 cm and AC=10 cm then <span>the angles of the triangle in order of size from least to greatest will be:

</span>∠C, ∠A, ∠B.<span>
</span>
Veronika [31]3 years ago
4 0

5cm,7cm,and 10cm? im no professional but might wanna double check first


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Soap films and bubbles are colorful because the interference conditions depend on the angle of illumination (which we aren't cov
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Answer:

56.39 nm

Step-by-step explanation:

In order to have constructive interference total optical path difference should be an integral number of wavelengths (crest and crest should be interfered). Therefore the constructive interference condition for soap film can be written as,

2t=(m+\frac{1}{2} ).\frac{\lambda}{n}

where λ is the wavelength of light and n is the refractive index of soap film, t is the thickness of the film, and m=0,1,2 ...

Please note that here we include an additional 1/2λ phase shift due to reflection from air-soap interface, because refractive index of latter is higher.

In order to have its longest constructive reflection at the red end (700 nm)

t_1=(m+\frac{1}{2} ).\frac{\lambda}{2.n}\\ \\ t_1=\frac{1}{2} .\frac{700}{(2)*(1.33)}\\ \\ t_1=131.58\ nm

Here we take m=0.

Similarly for the constructive reflection at the blue end (400 nm)

t_2=(m+\frac{1}{2} ).\frac{\lambda}{2.n}\\ \\ t_2=\frac{1}{2} .\frac{400}{(2)*(1.33)}\\ \\ t_2=75.19\ nm

Hence the thickness difference should be

t_1-t_2=131.58-75.19=56.39 \ nm

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