ᴬᶠʳᵃⁱᵈ ᵗᵒ ᵇᵉ ᵇˡᵒᶜᵏᵉᵈ ᴰᵒⁿᵗ ʷᵃⁿⁿᵃ ᶜʰᵃᵗ ʰᵉʳᵉ ᶜˡⁱᶜᵏ ᵗʰᵉ ˡⁱⁿᵏ ᵃⁿᵈ ʷʳⁱᵗᵉ ᵗᵒ ᵐᵉ ᶠⁱⁿᵈ ᵐᵉ ʰᵉʳᵉ
ᵇʳᵃⁱⁿˡʸ.ᵗᵒᵈᵃʸ

Although light from the sun appears white, it is actually made up of a lot of different colors. this portion of the electromagnetic spectrum, we call white light is referred to as within the electromagnetic spectrum.

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.