Explain Photo electric effect.
3.2 State Einstein’s photo electric equation.
3.3 Define terms work function and threshold frequency.
3.4 State laws of photo electric effect.
3.5 List the applications of photo electric effect.
3.6 Define critical angle.
3.7 Define Total internal reflection.
3.8 State conditions for Total internal reflection
3.9 What is Optical fiber? and explain working principle of optical fiber
3.10 List the applications of optical fiber.
3.11 Explain the principle of LASER.
3.12 Define spontaneous and stimulated emission.
3.13 Define population inversion.
3.14 List the examples of LASER.
3.15 List the uses of LASER. on
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The photoelectric effect is the emission of electrons or other free carriers when light falls on a material. Electrons emitted in this manner can be called photoelectrons. This phenomenon is commonly studied in electronic physics, as well as in fields of chemistry, such as quantum chemistry or electrochemistry.
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