To which regions of the EM spectrum do the following wavelengths belong:a) 250 nmb) 1500 nm
What is the difference between polarised light and unpolarized light?
Name the principle on the basis of which optical fibres work?
Calculate dispersive power of a transparent material given by:nv = 1.56, nr = 1.54, ny= 1.55
What is meant by short-sightedness?
Short sightedness is a defect in which a person can see the nearby objects clearly but cannot see the object far away distinctly.For people suffering from short-sightedness or myopia, image is formed in front of retina.
Two metals A and B have work functions 4 eV and 6 eV respectively. Which metal has lower threshold wavelength for photoelectric effect.
Calculate angular momentum of an electron in the third Bohr orbit of hydrogen atom.
In a nuclear reactor, what is the function of a moderator?
In our nature, where is the nuclear fusion reaction taking place continuously?
What is the use of a Zener diode?
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