PCS 125 Chapter Notes - Chapter 9: Curved Mirror, Plane Mirror, Real Image

• School: Ryerson University
• Department: Physics
• Course: PCS 125
• Professor: B.Devika Chithrani

Document Summary

Physics notes for class 12 chapter 9 ray. Light is a form of energy eyes. which produces the sources of light are of three types- thermal sources and luminescent sources. Photometry is a branch measurement of light energy. Light waves are electromagnetic waves, whose nature is transverse. The speed of light in vacuum is 3 x 108 mls but it is different in different media. The speed and wavelength of light change when it travels from one medium to another but its frequency remains unchanged. Real image can be obtained on a screen. Real image is inverted. (vii) virtual image the image obtained when light rays are not really meeting but appears to meet only, is called a virtual image. The rebouncing back of light rays into the same medium on striking a highly polished surface such as a mirror, is called reflection of light.