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Bragg's law (Sir W.L. Bragg; 1912)
While a beam of x-rays strikes at crystal surface wherein the layers of atoms or ions are separated regularly, the maximum intensity of the reflected ray takes place while the complement of the angle of incidence, theta, the wavelength of x-rays, lambda, and the distance among layers of atoms or ions, d, are associated by the equation
2 d sin theta = n lambda,
Where n is an integer.
Demonstrating the effects of the angle of the sun's rays on the quantity of heat and light received by the earth Bend a piece of cardboard and make a square tube 4 cm2 in cros
A rocket weighs 9800N. What applied force gives it a vertical acceleration of 4m/sec/sec?
explain with the aid of a diagram what is meant by the moment of a force about point
If A=3i+j+3k, B=-2i-4j-3k and c=2i+4j+3k. Find a unit vector parallel to 3A-2B+4C
A typical brick has dimensions of 20.0 cm x 10.0 cm x 5.0 cm and weighs 20.0 N. How does the pressure exerted by a typical brick when it is resting on its smallest side compa
Photoelectric electricity is produced directly from solar energy when which following are absorbed in a semiconductor to create an electric current? a) Protons b) Electron
Ques: Point out the direction of the current if any induced to flow in the loop by the changing magnetic field. (Describe is the loop as viewed from above.) Answer:
A mass flow of 10kg/s of water vapor at 30bar and 500 0 C flows steadily through the inlet an insulated turbine. The pressure of the water is reduced to 1bar at the turbi
A coil of resistance 1.5k Ω and 0.25H inductance is connected in parallel with a variable capacitance across a 10V, 8kHz supply. Calculate (a) the capacitance of the capacitor
how make a good project
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