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Why is there far more matter than antimatter in the observable universe?Ans) It may have to do with the way the universe was created. Certainly if there was a lot of antimatter created, much of it may well have come in contact with matter through the billions of years the universe has existed. That would have resulted in the conversion of that antimatter (along with a like amount of matter) into energy. There may not have been much antimatter around to begin with, too. But, since the amount of visible matter represents less matter than has been calculated to exist in the uinverse, it may be that there is a good bit of antimatter out there somewhere. Not likely, but possible.
Question: A person is doing effort to locate the image of an object of a plane mirror by means of a ray-tracing diagram. The person draws a ray by the object which strikes the
Q. A Plano-convex lens of radius 3 m is placed on a flat glass plate and is illuminated by monochromatic light. The radius of the 8th dark ring is 3.6 mm. Calculate the wavelength
FRAME OF REFERENCE: "A set of reference axis needed to locate the position of an object in space is known as a frame of reference"
What do you mean by a junction diode. Illustrate the formation of depletion layer at the junction. Describe the variation of depletion layer in forward and reverse biased condition
short questions
A block of wood initially at rest slides down an inclined plane. Neglecting friction, the kinetic energy of the block at the bottom of the plane is: a) All converted into h
Iron is what type of magnetic material? Is it: a) Diamagnetic b) Paramagnetic c) Ferromagnetic d) Non-magnetic Ans: Iron is ferromagnetic type of m
capillary law
An engineer is making an estimate for a home owner. This owner has a small stream (Q = 1.4 cfs, T = 40°F) that is located at an elevation H = 34 ft above the owner's residence. The
An object falls from a high tower and lands on a high hill with an alpha angle. Then he jumps while going down the hill. How long is the distance between when the ball landed and t
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