Excited potassium atoms emit deep-violet light at wavelengths 404.4 nm and 404.7 nm. Suppose light from a potassium lamp passes through a diffraction grating that has 960 slits per millimeter. Part A How far behind the grating must a viewing screen be placed so that the two first-order tringes are separated by 10 Express your answer with the appropriate units. L= 0.00238 m Submit Previous Anawace Bequest Answer X Incorrect; Try Again; 13 attempts remaining.

Excited potassium atoms emit deep-violet light at wavelengths 404.4 nm and 404.7 nm. Suppose light from a potassium lamp passes through a diffraction grating that has 960 slits per millimeter. Part A How far behind the grating must a viewing screen be placed so that the two first-order tringes are separated by 10 Express your answer with the appropriate units. L= 0.00238 m Submit Previous Anawace Bequest Answer X Incorrect; Try Again; 13 attempts remaining.