What is the wavelength of light in nm falling on double slits separated by 2.10 µm if the third-order maximum is at an angle of 64.0°? nm

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.

The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader