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11Alexandr11 [23.1K]
3 years ago
7

Top-down processing is often used when one encounters an unfamiliar stimulus. Please select the best answer from the choices pro

vided T F
Physics
2 answers:
Naddik [55]3 years ago
7 0
The answer for this question would be B) False or the second option because top-down processing is NOT often used when one encounters an unfamiliar stimulus.
anastassius [24]3 years ago
5 0

Answer: The given statement is False.

Top down processing is based on the information that is already present in the mind. It occurs when an individual works from general concepts ( that are imprinted in the brain) to specific.

This means that impressions that are already present in the brain influences the information that is gathered with the help of five senses. Thus, top down processing is not used when an individual encounters an unfamiliar stimulus.

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In si units, the electric field in an electromagnetic wave is described by ey = 104 sin(1.40 107x − ωt). (a) find the amplitude
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Answers:
(a) B_o  = 0.3466μT
(b) \lambda = 0.4488μm
(c) f = 6.68 * 10^{14}Hz

Explanation:
Given electric field(in y direction) equation:
E_y = 104sin(1.40 * 10^7 x -\omega t)

(a) The amplitude of electric field is E_o = 104. Hence

The amplitude of magnetic field oscillations is B_o =  \frac{E_o}{c}
Where c = speed of light

Therefore,
B_o =  \frac{104}{3*10^8} = 0.3466μT (Where T is in seconds--signifies the oscillations)

(b) To find the wavelength use:
\frac{2 \pi }{\lambda} = 1.40 * 10^7
\lambda =  \frac{2 \pi}{1.40} * 10^{-7}
\lambda =  0.4488μm

(c) Since c = fλ
=> f = c/λ

Now plug-in the values
f = (3*10^8)/(0.4488*10^-6)
f = 6.68 * 10^{14}Hz


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