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physics help?
1. We use the principles of wave optics
a. when the size of an object interacting with an electromagnetic wave is much larger than the wavelength
b. When the size of an object interacting with an electromagnetic wave is about the same size as the wavelength.
c. only when the size of an object interacting with an electromagnetic wave is larger than 1 m.
d. only when the size of an object interacting with an electromagnetic wave is smaller than 1 m.
2. White light is incident upon a diffraction grating with slit spacing d, and the diffraction pattern is observed on a screen. For first- order interference and above, which one of the following colors will be farthest from the central maximum?
a. violet
b. blue
c. green
d. red
Be the first to answer this question.