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weeeeeb [17]
3 years ago
11

In a laboratory experiment, a diffraction grating produces an interference pattern on a screen. If the number of slits in the gr

ating is increased, with everything else (including the slit spacing) the same, thenA.The fringes stay the same brightness and get closer together.B.The fringes stay the same brightness and get farther apart.C.The fringes stay in the same positions but get brighter and narrower.D.The fringes stay in the same positions but get dimmer and wider.E.The fringes get brighter, narrower, and closer together.
Physics
1 answer:
8_murik_8 [283]3 years ago
4 0

Answer:

C

Explanation:

Diffraction grating is an optics tool used when there is a need to separate light of different wavelengths using a high resolution. This tool is used in:

  • Optical pulse compressing devices
  • Spectrometers
  • Lasers
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Studentka2010 [4]
Fe=K Q1/Q2/d2
Q1 is the first charge
Q2 is the second charge
d is the distance
K= 9x10^9 NM^2/C2
Now let’s plug the numbers
Fe=9x10^9NM^2/C2 (2x10^-4C)(8x10^-4C) / (0.3m^2) you notice we took away the negative charges when we plugged the charges
Ok now we notice that we have C2 which is C to the power 2 we can write it as C^2 and we have two CSU’s beside each one of the charges we can get rid of them all by curtailment
And we can curtailment the M^2and the other M^2
Now we left with only 9x10^9N (2x10^-4)(8x10^-4)/ 0.3
Let’s multiply the (9)(2)(8)=144
And add the exponents (9)+(-4)+(-4)=1
So now we got 144x10N divide by the distance which is 0.3
144x10N / 0.3 = 4800N
Hope it helps u understand :)
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