D Question 10 7.5 pts Sodium has a work function of 2.46 eV. Of the following wavelengths, which is the one of the longest wavelength that could cause photoelectrons to be released from the sodium? O 400 nm 600 nm 0 700 nm 0 500 nm 300 nm Previous NextD Question 11 7.5 pts If the intensity of radiation from the sun is 1.4 kW/m2 at a distance of 150 x 106 km, at what distance is the intensity 5.6 kW/m2? 100 x 10 km O less than 30 x 10 km 38 x 10 km 0 75 x 106 km 300 x 10 km Previous NextQuestion 12 - 7.5 pts In the double slit interference experiment, which of the following statements about the interference pattern is true? O Interference occurs because the light from each slit has a different wavelength. O Interference occurs because the phase of the light going into each slit is different. O Interference occurs because the frequency of light for a given wavelength equal to the speed of light divided by the wavelength. O Interference occurs because the distance the light travels from each slit to the screen is not the same