Emission and absorption is best described by,a)dual / schizophrenic mo...
Distance between the slits, d=0.28×10−3 m
Distance between the slits and the screen, D=1.4m
Distance between the central fringe and the fourth (n=4) fringe,
u=1.2×10−2 m
In case of a constructive interference, we have the relation for the distance between the two fringes as:
u=nλD/d
⇒λ=ud/nD=6×10−7m=600nm
Emission and absorption is best described by,a)dual / schizophrenic mo...
Emission and Absorption: Particle Model
Particle Model of Light
The particle model of light, also known as the corpuscular theory, was proposed by Sir Isaac Newton in the late 17th century. According to this model, light consists of tiny particles known as corpuscles that travel in straight lines until they hit an object, where they either bounce off or get absorbed.
Emission
Emission is the process by which an atom or molecule releases energy in the form of light. When an electron in an atom is excited, it moves to a higher energy level. When it returns to its original energy level, it releases energy in the form of a photon, which is a particle of light.
Absorption
Absorption is the process by which an atom or molecule absorbs energy in the form of light. When a photon of light of the correct energy level interacts with an atom, it can excite an electron to a higher energy level. This results in the absorption of the photon.
Relation between Emission and Absorption
Emission and absorption are related because they are opposite processes. When an atom emits a photon of light, it loses energy. On the other hand, when an atom absorbs a photon of light, it gains energy. Therefore, these processes are complementary to each other.
Conclusion
In conclusion, emission and absorption are best described by the particle model of light. According to this model, light consists of tiny particles known as corpuscles that travel in straight lines until they hit an object, where they either bounce off or get absorbed. Emission is the process by which an atom or molecule releases energy in the form of light, while absorption is the process by which an atom or molecule absorbs energy in the form of light. These processes are complementary to each other and are opposite processes.