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burnsmykala23
23.11.2020 •
Mathematics
Which of the following represents the lowest speed in miles per hour?
A. 6 miles in 18 hour
B. 11 miles in 14 hour
C. 16 miles in 38 hour
D. 20 miles in 12 hour
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Ответ:
Step-by-step explanation:
We have given,
distance of the slit from the screen(d) = 3.2m
distance from the central maximum(m) = 1.3cm = 0.013m
Now,
(a). The expression for the angle of the inclination of the wave is (
)
Thus the angle of inclination of the wave is
(b). The expression for the angle![\alpha](/tpl/images/0234/3087/5a577.png)
after solving the equation we get,
Thus the angle
= 0.61 radian
(c). the expression for the ratio of the intensity is
Thus the ratio of the intensity is 0.0305