Briefly explain spectrographs, and describe the experiment that led Isaac Newton to conclude that white light is made of a mixture of colors
What will be an ideal response?
To analyze light in detail, you need to spread the light out according to wavelength into a spectrum, a task performed by a spectrograph. You can understand how this works by reproducing an experiment performed by Isaac Newton in 1666. Boring a hole in his window shutter, Newton admitted a thin beam of sunlight into his darkened bedroom. When he placed a prism in the beam, the sunlight spread into a beautiful spectrum on the far wall. From this and similar experiments, Newton concluded that white light was made of a mixture of all the colors.
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Plane Mirrors: A lighted candle is placed a short distance from a plane mirror, as shown in the figure. At which location will the image of the flame appear to be located?
A. at A B. at B C. at C D. at M (at the mirror)
A hydrochloric acid molecule consists of a lightweight hydrogen atom bound to a much more massive chlorine atom. The interaction between the atoms is not purely attractive, but has a potential energy function that has a valley whose bottom corresponds to a certain nonzero distance between the atoms. If we ignore rotations, which of the idealized models in this chapter might best describe this molecule?
A. The quanton in a box model B. The Bohr model C. The simple harmonic oscillator model
A charge (uniform linear density = 9.0 nC/m) is distributed along the x axis from x = 0 to x = 3.0 m. Determine the magnitude of the electric field at a point on the x axis with x = 4.0 m
a. 81 N/C b. 74 N/C c. 61 N/C d. 88 N/C e. 20 N/C
The Andes were formed by
A) two pieces of continental crust separating B) two pieces of continental crust colliding C) two pieces of oceanic crust colliding D) pieces of oceanic and continental crust colliding