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(i) It having of dissimilar bright lines.
(ii) It is given by an excited source in atomic state.
(iii)E.g. Spectrum of excited helium, mercury vapours sodium vapours or atomic hydrogen.
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
A pure semiconductor is known as intrinsic semiconductor. It has thermally formed current carriers (i) They have four electrons in the outer part of orbit of atom and atoms are
Can fiber be made any size? Well theoretically, yes. However, there are physical constraints due tothe materials and utility. Extremely large fibers have proportional bending r
Q. Explain an alloy? Answer:- An alloy is a homogeneous hybrid of two or else more elements at least one of which is a metal and where the resulting material has metallic
A ball with a mass of 25 grams is dropped from ledge 908 meters above the ground. What is its kinetic energy the instant before it hits the ground? What is the potential energy of
A sensitive beam balance The materials required for this balance contain a clothes peg, a knitting needle about 12 in. long, two pins or needles and a support like as a milk bo
When white light is normally occurrence on a diffraction grating the first order maximum for which colour of light occurs at the greatest angle with respect to the straight ahead d
C onsid er that two large paralle l plates forming a capacitor are separated by a distance d with vacuumed as the dielectric medium between the plates. The plates are connected to
what to right
how faster ultrsonic waves will travel in solids.
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