When light enters a glass slab, it bends toward the normal.Ģ. ![]() Where n21 is the refractive index of the second medium concerning the first medium. According to Snell’s law of refraction, the ratio of the sine of incidence and the sine of reflection is constant. ![]() Incident rays, normal and reflected rays, all lie on the same plane.Ģ. Speed of light reduces in going from rarer medium to denser medium. Speed and wavelength will change in refraction.Ħ. In refraction, when light travels from one medium to another. When a light ray travels from a denser medium to a rarer medium, light bends away from the normal.Ĥ. When a light ray passes from a rarer medium to a denser medium, light rays bend towards the normal.ģ. This happening is called the reflection of light.Ģ. When a beam of light enters from one medium to another, its path has a slight deflection. Thus we will explore Reflection Through Glass Slab. In this science experiment, we will learn to trace the path of a light ray passing through a rectangular glass slab for different incident angles and try to measure the angle of incidence, angle of reflection and angle of emergence. ![]() 13 Viva Questions With Answers Introduction
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