Inside a laser apparatus, the stimulation and relaxation of electrons in atoms cause many photons with the same <u>wavelength </u>to be continuously emitted. 
From the questions given, the main objective is to fill in the gaps and add important information where necessary. The missing information is highlighted in bold and underlined. 
- Inside a laser apparatus, the stimulation and relaxation of electrons in atoms cause many photons with the same <u>wavelength </u>to be continuously emitted. 
     2. When these photons are emitted, they travel between two <u>reflective </u>
          surfaces to form the wave that is represented in the simulation.
     3. This wave is the summation of all the photons being introduced with 
         every oscillation, and as they continue to travel, the amplitude
         <u>increases. </u>
      4.  This occurs because the photons are emitted in a coherent fashion;
         however, amplitude when the photons overlap in an incoherent 
         fashion.
      5.  In a laser device, a small portion of photons are permitted to escape
           (for use in an application). This is emulated in the simulation, by
          settling the Damping to Lots such that amplitude <u>remains relatively </u>
          <u>constant </u>when compared to damping of None. (Damping 
          represents the Loss of photons.
        6. The generation of multiple wavelengths is possible in some laser 
            producing systems, and the diffraction angle can be <u>varied</u> to allow 
           the isolation of different wavelengths.
        7. Finally, when the power of a laser is described, the wave property
           that is being referenced is a function of its frequency and
           <u>amplitude.</u>
Therefore, we can conclude that we've fully understood the concept of emission of photons and wavelength in a laser apparatus.
Learn more about wavelength here:
brainly.com/question/23023103?referrer=searchResults