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If the resultant force acting on a body of constant mass is zero, the body's momentum is: a) Increasing b) Decreasing b) Always zero d) Constant Ans: If
Sound Waves and the Eardrum While a pressure wave reaches the ear and a series of high and low pressure regions impinge upon the eardrum. An arrival of a compression or high pr
Subtracting 2 Vectors This is where things obtain a bit more interesting. What we required to note here is in which in Physics a negative sign simply means "in the opposite dir
Semi Conductors: Substance which are neither good Conductor, like metals nor very bad conductors like non metals are known as Semi conductors Examples of such substances are si
Plot the Bremsstrahlung emitted (intensity vs energy) from a copper target for (i) both 15 keV and 30 keV electrons, (ii) for 15 keV electrons at both 10 and 50 mA current and (iii
What are the applications of transmission electron microscope? Applications of the transmission electron microscope (TEM) a. The TEM is used into both material metallurgy, s
How is magnification in scanning electron microscope controlled? Magnification in scanning electron microscope: Magnification into a SEM (scanning electron microscope) can b
impure and pure spectrum
pseudo force: A "force" that arises since an observer is naively treating an accelerating frame like an inertial one.
Q. What is the focal length of a convex lens of focal length 30 cm in contact with a Concave lens of focal length 20 cm ? Is the system a converging or a diverging lens? Ignore
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