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Q. What are leptons? Give examples.
Leptons:
Leptons are lighter particles having mass equal to or less than about 207 times the mass of an electron except neutrino and antineutrino.
This group contains particles such like positron, electron, neutrino and antineutrino and positive and negative muons. The electron as well as positron is the antiparticles.
Neutrinos as well as antineutrino are also associated with β-ray emission. The neutrinos as well as antineutrinos are mass-less and charge-less particles but carrier of energy and spin. Muons were discovered in the cosmic ray studies.
Cart and The Brick Collisions among objects are governed through laws of momentum and energy. While a collision occurs in an isolated system, a total momentum of the system of
ELECTROMOTIVE FORCE – EMF: To make use of electricity by provision of an electric current, the potential different must be maintained. That is, the positive and negative charg
Kirkwood gaps (Kirkwood): Gaps in the asteroid belt, caused through resonance effects from Jupiter. Identical gaps exist in Saturn's rings, because of the resonance effects of
Q. An electron beam is accelerated through a potential difference of 104 volt. Find the de Broglie wavelength. λ = 12.27 A o / √V λ = 12.27 A o / √10 4 = 0.1227
what are the advantages of using the thermo-electric thermometer over the mecury glass thermometer?
Physical interpretation of wave function : Einstein proposed a historic relationship between energy and mass using postulates of STR. The variation of mass with velocity has modif
WHY Surface tension increases when an highly soluble SUBSTANCE is dissolved in water WHILE IT DECREASES WHEN an weakly soluble substance is dissolved in water
Q. If an object isn't moving, no external force acts on it. No it is always not true, there would be balanced forces which cancel each other out leaving no net force. Example:
Demonstrate the typical ultrasonic flaw detector in transmission mode? A typical ultrasonic flaw detector into its transmission mode is as demonstrated below. In this w
Ask question #how to work full wave rectifier#
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