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Q. Why does the sky appear blue in colour?
As-per to the Rayleigh's scattering law the shorter wavelengths are scattered much more than the longer wavelengths. The blue look of sky is due to scattering of sunlight by the atmosphere. Blue light is scattered to a bigger extent than red light.
This scattered radiation results the sky to appear blue.
a) The potential at a particular distance form a point charge is 600 volts and the electric field is 200 N/C. b) Describe distance of the point charge? c) Describe magn
INTERFERENCE and DIFFRACTION: INTERFERENCE: The physical effect of super position of waves from two sources vibrating with same frequency and amplitude is called the interfere
si el numero atomico del sodio es 11 y su numero de masa es 22,diga¿cuantos electrones,protones y neutrones respectivamente,tiene su atomo neutro?
Advantages and disadvantages of three phase system over single phase System A) In a single phase circuit the power delivered is pulsating. In three phase system the total power
There are imaginary lines or path of the field in the given direction. The lines of force are assumed to make a closed path beginning from N pole and ending at S pole with no loss.
The discovery of neutron becomes very late because: (1)Neutrons are present in nucleus (2)Neutrons are highly unstable particles (3)Neutrons are chargeless (4)Neutrons
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can electrons from an electron gun produce electricity
The main constituents of glass is (A) SiO 2 (B) B 2 O 3 (C) Al 2 O 3 (D) Cr 2 O 3 Ans: The main constituents of glass are SiO 2 .
Longitudinal Waves and Guitar Strings According to the diagram this pressure wave consists of rarefactions and compressions. The compressions are regions of high pressure, wher
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