Podcast
Questions and Answers
What happens to diffraction when the gap size is smaller than the wavelength?
What happens to diffraction when the gap size is smaller than the wavelength?
- Most waves are reflected (correct)
- Diffraction is maximized
- There is no diffraction
- The pattern becomes less noticeable
In the diffraction pattern produced by monochromatic light through a single slit, what causes the bright fringes?
In the diffraction pattern produced by monochromatic light through a single slit, what causes the bright fringes?
- Reflection at the slit
- Destructive interference
- Waves meeting out of phase
- Constructive interference (correct)
What happens to the intensity of the fringes as you move away from the central fringe?
What happens to the intensity of the fringes as you move away from the central fringe?
- It becomes unpredictable
- It decreases (correct)
- It increases
- It remains constant
How does the width of the obstacle affect diffraction?
How does the width of the obstacle affect diffraction?
What type of pattern is formed when monochromatic light is diffracted through a single slit onto a screen?
What type of pattern is formed when monochromatic light is diffracted through a single slit onto a screen?
When waves meet completely out of phase in a diffraction pattern, what type of interference occurs?
When waves meet completely out of phase in a diffraction pattern, what type of interference occurs?
What occurs when the gap is smaller than the wavelength?
What occurs when the gap is smaller than the wavelength?
How does the intensity of the fringes change as you move away from the central fringe?
How does the intensity of the fringes change as you move away from the central fringe?
What is the main result of having an obstacle wider than the wavelength in wave diffraction?
What is the main result of having an obstacle wider than the wavelength in wave diffraction?
In a diffraction pattern, what causes the dark fringes?
In a diffraction pattern, what causes the dark fringes?
What would happen if a wave meets an obstacle with a size exactly equal to the wavelength?
What would happen if a wave meets an obstacle with a size exactly equal to the wavelength?
When monochromatic light diffracts through a single slit forming an interference pattern, why is there a bright central fringe?
When monochromatic light diffracts through a single slit forming an interference pattern, why is there a bright central fringe?
