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Arago spot (D.F.J. Arago)
A bright spot which appears in the shadow of a uniform disc being backlit through monochromatic light emanating from a point source.
NEWTON'S FIRST LAW AND INERTIA: All the material bodies possess the property of opposing any alter in the state of rest or uniform motion when some external force is applies up
What do you mean by Moseley's law? Explain briefly its importance. Explain the origin of X-ray spectra. Describe continuous and characteristic x-ray spectrum.
The superposition theorem is a very useful network theorem. Write its statement
Advantages of A.C. transmission of power 1. The power can be produced at high voltages. 2. The maintenance of a.c. sub-stations is simple and cheaper. 3. The a.c. voltage
Discuss about the Single-mode fibre in short. Single-mode fibre: A single-mode fibre consists of a narrow core (8 to 10µm) and refractive index in between the core and cladd
Q. Why does the sky appear blue in colour? As-per to the Rayleigh's scattering law the shorter wavelengths are scattered much more than the longer wavelengths. The blue look o
Q. What is fine structure of spectral lines? When the spectral line of hydrogen atom is observed by spectrometers having high resolving power it is found that a single line is
Questions: Regard as two charged particles at a separation of 4 cm. Particle #1 has a charge of +2 micro-coulombs. Particle #2 has a charge of +16 micro-coulombs. How does the
explain the pitch of sound and also explain is the ghosts come in the category of matter? is the sound is the form of wave? explain sound,intensity,types,loudness of sound, quality
write a program about f=ma
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