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Paschen series:
The series that describes the emission spectrum of hydrogen while the electron is jumping to the third orbital. All lines are in the infrared portion of the spectrum.
The Michelson interferometer was designed to study the nature of: a) water waves b) sound waves c) an "ether" d) sunlight Ans: The Michelson inte
Q Give the differences between AF choke and RF choke. Audio - frequency (A.F) chokes Radio frequency (R. F) chokes: or high frequency (H.F) chokes
The nucleus of helium contains : (1)Four protons (2)Four neutrons (3)Two neutrons and two protons (4)Four protons and two electrons Ans: (3)Two neutrons and two prot
What are lens aberrations? Give reasons for them. Illustrate the working of a simple microscope and give a mathematical expression for its magnifying power.
The velocity of a body was noted to be constant during five minutes of its motion. What was acceleration during this interval its? As velocity of body remains same during given
Q. According to classical mechanics, what is the concept of time ? As-per to classical mechanics (i) The time interval among two events has the same value for all observers
Light propagates as transverse EM rays. The magnitude of electric field is much larger as compared to magnitude of magnetic field. We generally prefer to define light as electric f
Explain about the Homojunction Laser in brief. Homojunction Laser: Assume that GaAs be doped with T providing n-type material and with Ge providing p-type material. In forwa
Q. Why X-rays are not used in microscopes? 1) The wavelength of X-rays is slighter than that of the visible light. 2) X-rays can't be focussed as visible radiations are foc
explain refractive index of the transparent liquid using prism and spectrometer?
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