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Question
Why are polarized sunglasses are effective?
Answer:
If it weren't for the fact that surfaces that produce glare have a tendency to absorb vertically polarized light and reflect horizontally polarized light polarized sunglasses would have no advantage over un-polarized sunglasses.
Micrometer Simulation A Micrometer is used to measure the external dimensions of objects that are 3 cm or smaller, this provides precise measurements to inside 0.01 mm. The
Awhat is angle of projection of body thrown from inclined plane of 37degree so that body hits inclined plane normalysk question #Minimum 100 words accepted#
An organ pipe which is open at both ends resonates at its fundamental frequency. Neglecting any end effects, what wavelength is formed by this pipe in this mode of vibration if the
Illustrates term total internal reflection in fiber optics? Total internal reflection in fiber optics: The field of fiber optics depends onto the total internal reflection o
Cherenkov [Cerenkov] radiation (P.A. Cherenkov) Radiation emitted through a massive particle that is moving faster than light in the medium by which it is travelling. None of
Trojan points: It is L4 & L5, the two dynamically stable Lagrange points (under certain conditions). Trojan satellites: This is the satellites that orbit a body at o
Consider an x-ray tube in which electrons are accelerated by a constant high voltage of 250 kV. If the electron beam current is 10 mA, calculate the x-ray energy flux (energy fluen
A Surfer sits on his board waiting as waves go by to catch a ride back to shore. Assuming the waves can be modelled as a sine wave given by h (x,t) = 1.75 sin (0.03 Πx - 0.15 Πt) [
Out of ordinary and extra-ordinary waves, which wave obeys Snell's law?
Figure shows the magnetic circuit of a relay. When each of the air gaps are 1.5mm wide find the mmf required to produce a flux density of 0.75 T in the air gaps. Use the B-
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