| A | B |
|---|
| For double slit diffraction of monochromatic light bright bands are __________ interference. | constructive |
| For double slit diffraction of monochromatic light dark bands are _____________ interference. | destructive |
| For double slit diffraction if L is 10^5 greater than d the slit seperation the formula for measureing wavelength is | lambda = xd/L, where x is the distance between the two bright bands |
| For single slit diffraction if L is 10^5 greater than w, slit width the formula for finding wavelength is | lambda = xw/L, where x is the distance between the central bright band and the dark closest dark band |
| Diffraction is at a maximum when the width of the opening is equal to the ___________ | wavelength of light |
| Diffraction | bending of waves around the edges of barriers |
| Interference is caused by _________________. | Diffraction |
| Single slit diffraction patterns are more or less defined than double slit patterns? | less |
| Diffraction gratings with large numbers of evenly spaced slits measure wavelength _____________. | precisely |
| monochromatic | light with only one wavelength |
| Who had a famous double slit experiment | Thomas Young, 1801 |
