Consider the following statements. A. Heat flows from an object in liquid state
to an object in solid state;
B. Heat flows from an object at higher tem-
perature to an object at lower tempera-
ture;
C. Heat flows from an object with higher
thermal energy to one with lower ther-
mal energy
Which statements are true?

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?