1. What is the wavelength of a radio wave being broadcast by a radio station of frequency 640 kilohertz?  Answer
(43.0K)
2. What is the frequency of yellow light of wavelength 580 nm? Answer
(43.0K)
3. What is the speed of a beam of green light in a vacuum? Answer
(30.0K)
4. A diffraction grating has 2000 slits ruled in a space of 1.3 cm. What is the distance between adjacent slits? Answer
(31.0K)
5. Yellow light of wavelength 570 nm strikes a double slit with a spacing of 0.4 mm. If the interference pattern is observed on a screen located 0.9 m from the double slit, how far from the center of the screen is the second bright line from the central bright line? Answer
(45.0K)
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