( a ) How far away can a human eye distinguish two car headlights 2.0 m apart? Consider only diffraction effects and assume an eye diameter of 6.0 mm and a wavelength of 560 nm. ( b ) What is the minimum angular separation an eye could resolve when viewing two stars, considering only diffraction effects? In reality, it is about 1’ of arc. Why is it not equal to your answer in ( b )?
( a ) How far away can a human eye distinguish two car headlights 2.0 m apart? Consider only diffraction effects and assume an eye diameter of 6.0 mm and a wavelength of 560 nm. ( b ) What is the minimum angular separation an eye could resolve when viewing two stars, considering only diffraction effects? In reality, it is about 1’ of arc. Why is it not equal to your answer in ( b )?
(a) How far away can a human eye distinguish two car headlights 2.0 m apart? Consider only diffraction effects and assume an eye diameter of 6.0 mm and a wavelength of 560 nm. (b) What is the minimum angular separation an eye could resolve when viewing two stars, considering only diffraction effects? In reality, it is about 1’ of arc. Why is it not equal to your answer in (b)?
A solid sphere 22 cm in radius carries 17 μC, distributed uniformly
throughout its volume.
Part A
Find the electric field strength 12 cm from the sphere's center.
Express your answer using two significant figures.
E₁ =
ΜΕ ΑΣΦ
ха
Хь
b
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Part B
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Find the electric field strength 22 cm from the sphere's center.
Express your answer using two significant figures.
ΜΕ ΑΣΦ
E2 =
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Part C
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MN/C
Find the electric field strength 44 cm from the sphere's center.
Express your answer using two significant figures.
ΕΠΙ ΑΣΦ
E3 =
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MN/C
MN/C
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In a naval battle, a battleship is attempting to fire on a destroyer. The battleship is a distance
d1 = 2,150 m
to the east of the peak of a mountain on an island, as shown in the figure below. The destroyer is attempting to evade cannon shells fired from the battleship by hiding on the west side of the island. The initial speed of the shells that the battleship fires is
vi = 245 m/s.
The peak of the mountain is
h = 1,840 m
above sea level, and the western shore of the island is a horizontal distance
d2 = 250 m
from the peak. What are the distances (in m), as measured from the western shore of the island, at which the destroyer will be safe from fire from the battleship? (Note the figure is not to scale. You may assume that the height and width of the destroyer are small compared to d1 and h.)
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Diffraction of light animation best to understand class 12 physics; Author: PTAS: Physics Tomorrow Ambition School;https://www.youtube.com/watch?v=aYkd_xSvaxE;License: Standard YouTube License, CC-BY