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I am Lyosha [343]
3 years ago
8

Light of wavelength 633 nm from a He-Ne laser passes through a circular aperture and is observed on a screen 4.0 m behind the ap

erture. The diameter of the central bright area is 5.4 cm. What is the diameter of the aperture?
Physics
1 answer:
Verizon [17]3 years ago
8 0

Answer:

The answer is "1.144 \times 10^{-4} \ m".

Explanation:

w=\frac{2.44 \lambda L}{D}\\\\D=\frac{2.44 \lambda L}{w}\\\\

   =\frac{2.44 \times 633 \times 10^{-9}\times 4 }{0.054}\\\\=\frac{6178.08\times 10^{-9}}{0.054}\\\\=1.144 \times 10^{-4} \ m

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What minimum speed must the rocket have just before impact in order to save the explorer's life?
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A concave spherical mirror has a radius of curvature of magnitude 20.0 cm. (a) Find the location of the image for object distanc
Tems11 [23]

Answer:

Answered

Explanation:

The radius of curvature of the mirror R = 20 cm

then the focal length f = R/2 = 10 cm

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7 0
3 years ago
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Compounds formed from the attraction of oppositely charged ions are called
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Answer:

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