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Spectrum and electromagnetic radiations:
What is a spectrum?
Ans: A spectrum is a group of wave lengths or frequencies.
What are the electromagnetic radiations?
Ans: Electromagnetic radiations are characterized by oscillating electric and magnetic fields perpendicular to each other and also perpendicular to the direction of propagation. All these radiations travel with the same speed,that is 3 x 108m/s2.
How long will fiber optics last? In case of glass basically indefinitely the inert characteristics of the material. It refers to the actual fiber, but not to the polymer claddi
Energy is transmitted in a plane in two mutually perpendicular directions. Example : Wave propagating on the surface of water.
true or false. All radioactive elements have been synthesized
Define the use of quartz crystal method to detect ultrasonic waves. Quartz crystal method: This method is based onto the principle of Piezo-electric effect. While one pair o
Describe binding energy. How does binding energy per nucleon vary with mass number? What is it significance.
how potential barrier is formed at the pn junction diode
Need a word that descripes relationship of parabolic function? Thanks!
Write down the relation between focal length and power of a lens. Write down the expression for the equivalent focal length of two thin lenses separated by a distance.
What are the design constraints of slide emitting optics? The genuine illuminance of side emitting optics is low, while the luminance is quite acceptable in many cases. This m
Briefly explain how the wavelength of monochromatic light is calculated using Newton's rings arrangement?
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