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Theory of Light:
Newton proposed 'Corpuscular Theory of Light'.
2. According to corpuscular theory, light consists of a stream of tiny, light and perfectly elastic particles called 'corpuscles'.
3. The velocity of light is different in different media.
4. According to the corpuscular theory of light, various colours of light are supposed to be due to different sizes of corpuscles.
5. Corpuscular theory could not explain the phenomena of interference, diffraction and polarization of light.
6. According to Huygens' theory, light travels in the form of waves.
7. The basis of Huygens' wave theory of light is his principle concerning construction of wavefront.
8. The imaginary three dimensional surface formed by the particles of a medium which are vibrating in the same phase is called a 'wavefront'.
Magnetism: 1. There are two types of magnetic pole north and south. 2. Like poles repel and unlike pole attract each other. 3. Magnetic substance produce magnetic field.
Armature core: It houses the armature conductors or coils and causes them to rotate and as cuts the magnetic flux of field magnets. It also gives a path of very low reluctanc
What do you understand by "End correction" in resonating air column? What occures to the frequency of a tuning fork a) When it is loaded with a little wax and b) When it is file
1. Two trucks are connected by a rope. The rope is attached to a winch on one of the trucks so that the trucks are being pulled together slowly as the winch pulls in the rope. For
Q. Explain Snells Law? It is believed that Snell developed his well-known equation by purely empirical means. He made various measurements of the refracting properties of vario
derivation by calculas method of Snth = (Sn – Sn -1) = u + a/2 (2n – 1)
Working of terrestrial telescope
What makes a flashlight suddenly become dim or bright when you shake it?
When were foundations of quantum mechanics established? Foundations of quantum mechanics : The quantum mechanics foundations were established throughout the first half of th
A dartboard with a mass of 2.20 kg is suspended from the ceiling such that it is initially at rest. A 0.030-kg dart is thrown at the dartboard with a velocity of 1.3 m/s. A
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