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Gaurav Seth 6 years, 10 months ago
Given:
For an equilateral triangular prism, A=60o
Using the prism formula, we can obtain the relation for the refractive index of the material of the prism as:
Posted by King Khan 6 years, 10 months ago
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Yogita Ingle 6 years, 10 months ago
A large number of atoms in a crystal stone is closer to each other and more those electrons interact with themselves. The energy level of electrons in their shell is only caused because of the modification in their energy levels. The most important feature of Energy Bands is that the energy states for electrons are continuous in varied ranges. Thus, we can say that the energy level of an atom vary in valence bands and in conduction bands.
Since the electrons interact with other electrons, the energy associated with a material is altered so, the electrons are associated with a band of energy levels. The collection of energy levels which are partially or wholly filled are called valence band, and they are never empty. The collection of energy levels of the free electron which move freely around the material are called conduction band. There is an extra energy required to the conduction band by the valence electrons to move, which is termed as Forbidden energy.
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Gaurav Seth 6 years, 10 months ago
In quantum mechanics, matter is believed to behave both like a particle and a wave at the sub-microscopic level. The particle behavior of matter is obvious. When you look at a table, you think of it like a solid, stationary piece of matter with a fixed location. At this macroscopic scale, this holds true. But when we zoom into the subatomic level, things begin to get more complicated, and matter doesn't always exhibit the particle behavior that we expect.
This non-particle behavior of matter was first proposed in 1923, by Louis de Broglie, a French physicist. In his PhD thesis, he proposed that particles also have wave-like properties. Although he did not have the ability to test this hypothesis at the time, he derived an equation to prove it using Einstein's famous mass-energy relation and the Planck equation.
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H!Mαη$Hμ Ұαδαυ ✔️ 6 years, 10 months ago
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State two differences between interference and diffraction For light of wavelength λ = 6 × 10–7 m, it is found that in a thin film of air, 9 fringes occur between two points deduce the difference of film thickness between these points.
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Yogita Ingle 6 years, 10 months ago
Earthing is the proper connection of exposed metal parts of an electrical circuit to the ground. It is accomplished by thick copper wires. Earthing protects the appliances and human beings in case of insulation fail or accidental short circuit. When the live wire touches the earth wire, large current flows through it and causes the fuse to blow off or circuit breaker to trip and thereby protecting the appliance as well as users.
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Yogita Ingle 6 years, 10 months ago
If the electric field lines cut each other then at that point we can draw two tangents I.e two directions for a point on the electric field which is not possible.
Posted by Farukh Ansari 6 years, 10 months ago
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Gaurav Seth 6 years, 10 months ago
If we scatter iron fillings around the magnets, then these fillings will arrange themselves around the magnet to form the field lines. The closer/denser the field lines formed by the iron fillings, the stronger will be the magnet.
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Divi Pareek 6 years, 10 months ago
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