Answer:
True
Explanation:
This is true statement because in DC circuit there is only resistance which comes into play of opposition of current.
In DC circuit there is no role of frequency in if there is no frequency then there will no inductive reactance and no capacitive reactance to oppose the current flow
So in DC circuit only resistance is responsible to oppose the flow of current
So this is a true statement
To solve this exercise, it is necessary to apply the concepts on the principle of superposition, specifically on constructive interference,
Constructive interference (light spot) is defined by
![dsin\theta=m\lambda](https://tex.z-dn.net/?f=dsin%5Ctheta%3Dm%5Clambda)
Where,
m = The integer m is called the interference order and is the number of wavelengths by which the two paths differ.
![\lambda = wavelenght](https://tex.z-dn.net/?f=%5Clambda%20%3D%20wavelenght)
d = Distance
For smaller angles
,
![d tan\theta = m \lambda](https://tex.z-dn.net/?f=d%20tan%5Ctheta%20%3D%20m%20%5Clambda)
From the trigonometric properties it is understood that so the is - in this case - the length measured vertically by reason of distance, that is
![d*\frac{y}{L} = m\lambda](https://tex.z-dn.net/?f=d%2A%5Cfrac%7By%7D%7BL%7D%20%3D%20m%5Clambda)
Re-arrange to find y,
![y = \frac{m\lambda L}{d}](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7Bm%5Clambda%20L%7D%7Bd%7D)
Replacing our values
![y = \frac{(1)(600*10^{-9}(3.5m)}{0.240*10^{-3}m}](https://tex.z-dn.net/?f=y%20%20%3D%20%5Cfrac%7B%281%29%28600%2A10%5E%7B-9%7D%283.5m%29%7D%7B0.240%2A10%5E%7B-3%7Dm%7D)
![y = 8.75*10^{-3}m](https://tex.z-dn.net/?f=y%20%3D%208.75%2A10%5E%7B-3%7Dm)
![y = 8.75mm](https://tex.z-dn.net/?f=y%20%3D%208.75mm)
PART B) To calculate the intensity it is necessary to find the angle between the previously calculated height and distance in order to calculate the phase angle, in other words,
![tan\theta' = \frac{y}{L}](https://tex.z-dn.net/?f=tan%5Ctheta%27%20%3D%20%5Cfrac%7By%7D%7BL%7D)
![tan\theta' = \frac{1/2(8.75*10^{-3})}{3.5}](https://tex.z-dn.net/?f=tan%5Ctheta%27%20%3D%20%5Cfrac%7B1%2F2%288.75%2A10%5E%7B-3%7D%29%7D%7B3.5%7D)
![\tetha = 0.07161\°](https://tex.z-dn.net/?f=%5Ctetha%20%3D%200.07161%5C%C2%B0)
Therefore phase angle is
![\gamma = \frac{2\pi}{\lambda}sin\theta'](https://tex.z-dn.net/?f=%5Cgamma%20%3D%20%5Cfrac%7B2%5Cpi%7D%7B%5Clambda%7Dsin%5Ctheta%27)
![\gamma = \pi](https://tex.z-dn.net/?f=%5Cgamma%20%3D%20%5Cpi)
The intensity formula would then be given by,
![I = I_0 \frac{sin\frac{\gamma}{2}^2}{\frac{\gamma}{2}}](https://tex.z-dn.net/?f=I%20%3D%20I_0%20%5Cfrac%7Bsin%5Cfrac%7B%5Cgamma%7D%7B2%7D%5E2%7D%7B%5Cfrac%7B%5Cgamma%7D%7B2%7D%7D)
![I = 4.1*10^{-6}(\frac{4}{\pi})](https://tex.z-dn.net/?f=I%20%3D%204.1%2A10%5E%7B-6%7D%28%5Cfrac%7B4%7D%7B%5Cpi%7D%29)
![I = 1.66*10^{-6}W/m^2](https://tex.z-dn.net/?f=I%20%3D%201.66%2A10%5E%7B-6%7DW%2Fm%5E2)
A nation's nominal GDP is $1.5 trillion with an inflation rate of 5%. ∴ Real GDP is 30 trillion.
<u>Explanation:</u>
Key Terms
GDP deflator: A measure of the level of prices of all new, domestically produced, final goods and services in an economy. It is calculated by computing the ratio of nominal GDP to the real measure of GDP.
real GDP: A macroeconomic measure of the value of the economy’s output adjusted for price changes (inflation or deflation).
nominal GDP: A macroeconomic measure of the value of the economy’s output that is not adjusted for inflation.
GDP deflator( inflation rate = 5% ) =
![$\frac{\text { Nominal GDP }}{\text { Real GDP }} \times 100$](https://tex.z-dn.net/?f=%24%5Cfrac%7B%5Ctext%20%7B%20Nominal%20GDP%20%7D%7D%7B%5Ctext%20%7B%20Real%20GDP%20%7D%7D%20%5Ctimes%20100%24)
Inflation rate = ![\frac{1.5}{\text {Real } G D P} \times 100](https://tex.z-dn.net/?f=%5Cfrac%7B1.5%7D%7B%5Ctext%20%7BReal%20%7D%20G%20D%20P%7D%20%5Ctimes%20100)
trillion
∴ Real GDP is 30 trillion.
It is because, "Right reflecting" when it hits the textbook's surface, that's why we can see it!!
Hope this helps!
Answer:
a force that is able to act at a distance
Explanation:
:)