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A beam of white light is passed through a diffraction grating and the resulting spectrum is allowed to fall on a screen.
Which color of light that undergoes the greatest deviation from its original direction?
Is it:
a) Red
b) Yellow
c) Blue
d) Violet
Ans- RED Colour
What is the wavelength of electromagnetic waves of frequency 5 x 1019Hz in free space? Give its two applications.
what is
baryon decay The idea, predicted through several grand-unified theories, that class of subatomic elements called baryons (of which the nucleons protons & neutrons are members
who invented this?
Write down the electromagnetic wave equation for free space in terms of electric field.
1. We want to measure a sinusoidal signal (frequency 100 Hz) expected to be of strength 1 mV RMS in the presence of noise of peak amplitude 3 mV. (a) If our A/D converter has
Beauty criterion (Dirac) The idea that the more aesthetically pleasant a theory is, the better it is. Of course this criterion does not stand up to the real test whether or no
A standing wave is described by the wave function where x and y are in meters and t is in seconds. (a) Prepare graphs showing y as a function of x for five instants: t = 0, 5 ms,
what is vector triple product
Watt; W (after J. Watt, 1736-1819): The derived SI unit of power, explained as a power of 1 J acting onto a period of 1 s; thus it has units of J/s.
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