Obtain the wavelength in nanometers of (a) blue light with a frequency of 6.445 x 1014 Hz and (b) orange light with a frequency of 4.885 x 1014 Hz.

10. A beam of initially unpolarized light of intensity 723 W/m^2 passes through a series of polarizing filters, each one s axis aligned at a 17.9-degree angle with respect to the previous filter s axis. The beam of light emerging from the final filter in the series has an intensity of 220.1 W/m^2. How many polarizing filters did the beam pass through?     3     12     9     6

A laser emits a beam of monochromatic light with frequency 4.40 x 10^14 Hz. What color is the laser beam?     yellow     blue     violet     red

Determine the frequency of light at 4.62 x 102 nm and 6.08 x 102 nm. (a) 4.62 x 102 nm Hz (b) 6.08 x 102 nm Hz

Yellow light has a wavelength of 5600 A°. Its value in micrometer is

A spherical source of light with a diameter Deource = 3.55 cm radiates light equally in all directions, with power P = 4.10 W. (a) Find the light intensity (in kW/m2) at the surface of the light source. |kW/m² (b) Find the light intensity (in mW/m2) r = 7.10 m away from the center of the light source. mW/m2 (c) At this 7.10 m distance, a lens is set up with its axis pointing toward the light source. The lens has a circular face with a diameter of Dlens = 16.0 cm and has a focal length of f = 34.0 cm. Find the diameter (in cm) of the light source's image. cm (d) Find the light intensity (in W/m2) at the image. |W/m2