Lecture26 - Laser 3rd secondary
Wallet enrolment ()

In this lecture, you will study Laser, spontaneous emission, stimulated emission, and properties of laser rays and Laser action  and main components of laser devices and Helium-Neon LASER and Laser applications  (holography, photograph) and 

this is in chapter 7 (Laser)( Egyptian curriculum for 3rd secondary students (thanwya)

#physics #thanwy #thanwya #3rd_secondary #Farouk

Callback before_footer in block_students component should be migrated to new hook callback for core\hook\output\before_footer_html_generation
  • line 7472 of /lib/moodlelib.php: call to debugging()
  • line 7539 of /lib/moodlelib.php: call to {closure}()
  • line 71 of /lib/classes/hook/output/before_footer_html_generation.php: call to get_plugins_with_function()
  • line 1503 of /lib/outputrenderers.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
  • line 81 of /course/index.php: call to core_renderer->footer()