Question

1. Using your spectroscope, you observe a light source and see several strong, distinct lines. Is this source continuous or discrete? Given a line with a wavelength corresponding to 500 nm, calculate the energy of the emitted light.

2. Given a photon emitted from a hydrogen lamp with a wavelength of 434 nm, identify the correct transition in the Balmer series. R_h = 2.18 *10^(-18) J. (Hint: it is in the visible region of the electromagnetic spectrum)

3. Looking through your spectroscope, you see several discrete, clearly defined lines. What is a possible source for this spectrum.

   1. Fluorescent lamp

   2. Incandescent lightbulb

   3. Candle

   4. Sunlight

4. After observing light from a fluorescent bulb as a series of colored bands through a spectroscope, a table is compiled with two columns. The left column corresponds to the independent variable-the literature wavelength of each colored band and the right column is the dependent variable-the position on the scale of the spectroscope at which each colored band appears. The data are plotted as a scatter plot and fitted to a line with the following equation: y = 0.0084x-1.237. What is the wavelength that corresponds to a line which appears at 6.57 on the scale of the spectroscope?

Answer 1

If you observing the distinct pattern it means it is discrete in nature..

Ans2 Energy ho planck's constant C2 speed of light 7 Wavelength Es 6.6 x 10 9" x 3x1080 500x10-9 E: 3.96*10-19 Joules