Guangdong-Shanghai version eight "Reflection of Light" ppt courseware package (including material files) review: 1. The conditions of linear propagation of light. 2. The propagation speed of light in vacuum is m / s, and the propagation speed of light in other media is faster than that in vacuum. 1. Why can we see the sun, lights and other objects? 2. Why can we see classrooms, people, books and other non-luminous objects? 3. Which phenomena we see in daily life are the reflection of light?
Christmas Toys,High Quality Christmas Toys,Christmas Toys Details, Kaixin Plastic Toys Manufactory
GST ENTERPRISE LTD , http://www.gsttoy.com