Crowdly
Add to Chrome
Questions Bank (1234760 total)
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?
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?
Two slits are separated by 0.180 mm. An interference pattern is formed on a screen 80.0 cm away by 656.3-nm light. Calculate the fraction of the maximum intensity a distance y = 0.600 cm away from the central maximum.
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 1 m away?
Estimate the distance (in
cm) between the central bright region and the fourth dark fringe on a screen 4.00 m from two double slits 0.500 mm apart illuminated by 530-nm light.
A narrow slit is
illuminated with sodium yellow light of wavelength 560 nm. If the central
maximum extends to
±20.0°, how wide is the slit?Two slits separated by
0.050 mm are illuminated with blue light (
lambda= 450 nm). How many
bands of bright lines are there between the central maximum and the 10-cm
position? (The distance between the double slits and the screen is 1.5 m.)