Light is shining on a metallic surface causing electrons to be ejected. Increasing the frequency of light: O A) causes ejected electrons to have more kinetic energy O B) causes ejected electrons to have less velocity O C) causes even more electrons to be ejected Op) causes no change to the ejected electrons or to the number of ejected electrons O El none of the above Question 14 (1 point) The greater the work function for a metal. Al the greater the speed of the ejected electron O B) the smaller the speed of the ejected electron O C) the more electrons are ejected O D) the lower the threshold frequency OE) none of the above Question 15 (1 point) The momentum of a photon with a wavelength of 725 nm is: OA) 9.14 x 10'2 kg . m/'s ( B) 9.14 x 10 25 kg . m/'s OC) 9.14 x 10 31 kg . m/'s ( D) 9.14 x 10-21 kg - m/'s O E) 9.14 x 10 45 kg . m/s