Sodium's emission lines at 589.0 nm and 589.6 nm pass through a diffraction grating and form two m = +1 maxima on a viewing screen. For which situation would the spacing between the two lines increase?
a. The grating is exchanged for one having fewer lines per millimeter
b. The grating is exchanged for one with twice the total number of lines.
c. The maxima are viewed in second order.
d. The intensity of the light is doubled.
c
You might also like to view...
You may have heard it said that all objects, even ones at the temperature of our bodies, are continually emitting electromagnetic radiation. Is this true?
A) Yes, and the radiation referred to results from the trace amounts of radioactive material that have accumulated in our bodies from the food we eat. B) Yes, and the radiation from our bodies is mostly in the infrared region of the spectrum, and hence not detected by our eyes. C) Yes, and this radiation is mostly in the form of radio waves, which is a common source of static often heard on an AM radio. D) No, this is not true. If a person were emitting electromagnetic radiation, he could be seen glowing in the dark, and this is obviously not the case for most people.
Within the frost line, planetesimals were composed entirely of rock and outside the frost line planetesimals were composed entirely of ice
Indicate whether the statement is true or false
Which has the greater half-life?
A) Oxygen-19 B) Cobalt-60 C) Uranium-238 D) Strontium-90 E) Hydrogen-3
When you measure distances to stars via parallax, it is better to use kilometers or Astronomical Units as the unit of distance
Indicate whether the statement is true or false