The separation of white light into its component colors is called
a. polarization.
b. diffraction.
c. dispersion.
d. refraction.
[Ques. 2] Suppose we use optical radiation ( = 500 nm) to determine the position of the electron to within the wavelength of the light. What will be the resulting uncertainty in the electron's velocity?
[Ques. 3] The large, central portion of a swirling solar nebula is called a(n) ______________.
Fill in the blank(s) with correct word
[Ques. 4] When light enters a denser medium and is refracted,
a. the wavelength is unchanged.
b. the wave speed increases.
c. the frequency is unchanged.
d. the wavelength increases.
[Ques. 5] An electron is sitting on a pinpoint having a diameter of 2.5 m. What is the minimum uncertainty in the speed of the electron?
[Ques. 6] Gravity acting on ______________ played an important role in the condensation process of forming nebulae.
Fill in the blank(s) with correct word
[Ques. 7] The index of refraction of transparent materials is
a. equal to 1.
b. greater than 1.
c. less than 1.
d. any of these.
[Ques. 8] The seeing ability or resolution of radiation is determined by its wavelength. If an atom is approximately 1010 m in diameter, how fast must an electron travel to have a wavelength smaller than the size of an atom?
[Ques. 9] The planet that is normally farthest from the Sun, but sometimes is not, is ______________.
Fill in the blank(s) with correct word
[Ques. 10] The speed of light in a particular transparent medium is 2/8 the speed of light in a vacuum. What is the index of refraction of the material?
a. 1.3
b. 0.75
c. 4
d. 0.25
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