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An electron in a hydrogen atom makes a transition from E3 to E1.
How much energy does the atom lose?
A monochromatic beam of unpolarised light is incident on a glass slab. The reflected ray is found to be purely plane polarized. Evaluate the angle between the reflected and the ref
How many types of fibers are there? There is truly only one fiber optic. The word "fiber optics" applies really to a stem of light physics dealing along with the properties of
Each physical system has related with it a certain point whose motion characterizes the motion of the whole system. When the system goes under some external forces than this point
How many sizes are there of lighting fiber optic? Literally hundreds, by some microns to over an inch into diameter, multicore and solid core, and square shaped ribbons, sheet
The nuclei have been separated on the basis of the number of protons (atomic number) or the total number of nucleons (mass number) as given below: (i) Isotopes: The atoms of ele
A boat can travel at a speed of 3 m s -1 on still water. A boatman needs to cross a river whilst covering the shortest possible distance. In what direction should he row with resp
EXPLANATION: Whenever an interaction occurs among two objects, each object exerts the similar force on the other, but in the opposite direction and for the similar length of ti
What are the objectives to know about working of ultrasonics? Objectives of ultrasonics: a. Understand the term ultrasonics. b. Describe the principle, working and constr
what is electic field
Q. If 6.25 X 10 18 electrons flow through a given cross-section in unit time, find the current. Solution: Current I = q / t = ne / t = (6.25 X 10 18X 1.6 X 10 -19) / 1 = 1 A
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