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A radioactive atom is moving with respect to the laboratory at a speed of 0.3 c in the x direction. If it emits an electron having a speed of 0.8 c in the rest frame of the atom, Evaluate the velocity of electron with respect to a laboratory observer when :
(I) it is ejected in the y direction
(ii) the electron is ejected in the x direction
Explain an inertial frame of reference and derive the Lorentz transformation equations formula. How it can be used in optical gyroscope?
What is radium used for? Radium was formerly used in self-luminous paints for nuclear panels, watches, aircraft switches, clocks, and instrument dials. More than 100 former wat
Object-Image Relationships Ray tracing for a thin lens showing the formation of a real image of an object.
An equiconvex lens has the radius of one curved surface is 0.12 m and focal length of 0.10 m. Determine the refractive index of the material of the convex lens.
composition of two SHM at right angle to each other and having time period in the ratio of 1: 2
Q. What is Fraunhofer diffraction? a) The source as well as the screen are at infinite distances from the obstacle producing diffraction. b) The wave front suffer diffracti
10 moles of an ideal gas expands reversibly and isothermally from a volume if 5 lit. to 50 lit. at 25°C. Find the maximum work done? Express the result in Joules.
Wires A as well as wire B are both made out of copper. Wire B is double as long as wire A. The diameter of wire B is doubles that of wire A. Answer: Resistivity is a charac
A 2350-kg granite tombstone absorbs 2.8 x 10 7 J of energy from the Sun to change its temperature from 5.0°C at night to 20.0°C during an autumn day. Verify the specific heat
A see-saw lever Get a thick plank about 3 m long and bring it into the class room. Balance it over a box or some other suitable device and let the pupils experiment with the se
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