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PHYS143 (DB125) Physics For Engineers
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Two slits separated by 0.10 mm are illuminated with green light ( = 540 nm). Calculate the distance (in cm) from the central bright-region to the fifth bright band if the screen is 2.1 m away?
Monochromatic light (λ = 696 nm) is incident on a soap bubble ( = 1.40). How thick is the bubble (in nm) if destructive interference occurs in the reflected light?
Light is incident on a double-slit. The fourth bright band has an angular distance of 7.0° from the central maximum. What is the distance between the slits (in mm)? (Assume the frequency of the light is 4.3 ×1014 Hz.)
The light reflected from a soap bubble ( = 646 nm) at its center. What is the minimum thickness (in nm)?
How wide must a narrow slit be if the first diffraction minimum occurs at ±12° with laser light of 633 nm?
Monochromatic light (λ = 672 nm) is incident on a soap bubble ( = 1.40). How thick is the bubble (in nm) if destructive interference occurs in the reflected light?
Light is incident on a double-slit. The fourth bright band has an angular distance of 7.0° from the central maximum. What is the distance between the slits (in mm)? (Assume the frequency of the light is 5.1 ×1014 Hz.)
The light reflected from a soap bubble ( = 678 nm) at its center. What is the minimum thickness (in nm)?
In an X-ray diffraction
experiment using X-rays of
lambda = 1.2 x 10-10m, a first-order maximum
occurred at 15.00
°. Find the crystal plane spacing.Helium-neon laser light (lambda = 4.50 x 10-7 m) is sent through a 0.40 mm-wide single slit. What is the width of the central maximum on a screen 1.5 m from the slit?