For each statement below, select True or False 1 Red light strikes two narrow sl
ID: 1474644 • Letter: F
Question
For each statement below, select True or False
1 Red light strikes two narrow slits and an inteference pattern is observed on a screen. As the distance separating the two narrow slits is decreased, the interference pattern observed on the screen will get wider.
2.As the wavelength of light hitting a single slit is increased, the diffraction pattern observed on a screen will get wider.
3.When a diffraction grating is illuminated by white light, the first order maximum for green light is closer to the central maximum than the first order maximum for red light.
Explanation / Answer
1 - true
fringe width is inversaly proportional to distance between slits so interference pattern become wider
2 - true
width of diferection pattern is proportional to wavelength
3 - true
Larger wavelength have larger wisth so they are separated from central maximum at more distance compare to light of lower wavelength. green light have lower wavelength then red.