Find the maximum wavelength of photons that can generate carriers by being absorbed in the following semiconductors (respective band gap is given in parentheses): ZnTe (2.39 eV); GaN (3.4 eV); InP (1.34 eV). Are they in the region of ultraviolet, visible or infrared?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?

Ais not a mixture. colloid compound suspension solution