Very efficient because it uses less then half to do the action then the vacuum actually stores.
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Answer:
(3) 3.2 × 10–19 C
Explanation:
The charge of a subatomic particle can only be an integer multiple of the fundamental charge, which is
![q=1.6\cdot 10^{-19} C](https://tex.z-dn.net/?f=q%3D1.6%5Ccdot%2010%5E%7B-19%7D%20C)
So, let's analyze the 4 options:
(1) 5.0 × 10–20 C
--> not an integer number
(2) 8.0 × 10–20 C
--> not an integer number
(3) 3.2 × 10–19 C
--> integer number
(4) 5.0 × 10–19 C
--> not an integer number
So, the only option which is correct is (3).
Answer:
214.3 x 10⁻⁹ m or 214.3 nm
Explanation:
= slit separation in the experiment = 3.00 x 10⁻⁵ m
= screen distance from the slits = 2.00 m
= Order of the bright fringe = 7
λ = Wavelength of the light
= distance of the bright fringe from the central bright fringe = 10 cm = 0.10 m
Position of the bright fringe is given as
![y = \frac{nD\lambda }{d}](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7BnD%5Clambda%20%7D%7Bd%7D)
![0.10 = \frac{(7)(2)\lambda }{3.00\times 10^{-5}}](https://tex.z-dn.net/?f=0.10%20%3D%20%5Cfrac%7B%287%29%282%29%5Clambda%20%7D%7B3.00%5Ctimes%2010%5E%7B-5%7D%7D)
λ = 214.3 x 10⁻⁹ m
λ = 214.3 nm