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Q. Define: grating element.
The combined width of a slit as well as a ruling in a plane diffraction grating is called as a grating element.
It describes the temperature above which the material loses its spontaneous polarization and piezoelectric characteristics.
The scattering of a photon by an electron is known as Compton Effect. The momentum and energy is preserved. Scattered photon will have less power as compare to incident photon (les
The forced harmonic oscillations have same displacement amplitude at frequencies ω 1 = 400 Hz and ω 2 = 800 Hz. Evaluate the resonance frequency at which the displacement is maxi
It is the area or region around the material where magnetic properties can be found is called as “magnetic field”.
Q. What percentage of a given radioactive substance will be left after 5 half -life periods? The residual part of radioactive substance = ( ½ ) 5 Therefore the percentage
The most probable radius (in pm) for finding the electron He + is: (1) 0.0 (2) 52.9 (3) 26.5 (4) 105.8 Ans: (c)26.5
Until the time of Einstein, mass and energy were considered as two different physical quantities. But in 1905, with the help of postulates of the special theory of relativity Einst
Advantages of three phase system over single phase system a) Rotating magnetic field can be set up, by passing three-phase current by stationary coils. b) Polyphase s
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 A positive charge or
Properties of cement mortar 1. It should make good adhesion with building units like bricks, stones etc. 2. It should be capable of resisting penetration of water. 3. It s
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