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What do you mean by Doppler effect? Derive a mathematical expression for the apparent frequency of a note, when source of sound and observer are approaching each other.
When hydrogen atom is excited, it returns to its normal unexcited (or ground state) state by emitting the energy it had absorbed previous. This energy is given out by the atom in t
An inter metallic compound having the chemical formula A 3 B, where A represents a transition element and a crystal structure in which the B atoms are located as the corners and in
why fall an apple from a tree
Light with a frequency of 7.5 x 10 14 Hz is able to eject electrons from the metal surface of a photocell that has a threshold frequency of 5.2 x 10 14 Hz. What stopping potentia
A sugar solution was formed by adding 80 gm of cane sugar into one liter of water. By observation it is found that it gave an optical rotation of 9.9 0 , when filled
An army plane wants to drop supplies to a group of physics students stranded on an island. In order for the package to land on the island, the pilot needs to drop the package befor
Newtons law of inertia Truck and Ladder As per to Newton's first law, an object in motion continues within motion along with the similar speed and in the similar direction unle
(a) Equation (3) may be viewed as a formalism of synaptic plasticity - the synapse is able to change in strength in response to either use or disuse of it. We can observe the s
Electrostatic Induction: Electrostatic Induction is the process in which a charged object charges another neutral object without touching it.
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