Among of energy in a photon of light is proportional to the
a. medium through which it travels.
b. shape of the light wave it creates
c. speed of the corresponding light wave
d. frequency of the corresponding light wave

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?