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When an electron makes transition from higher energy level having energy E2(n2) to a lower energy level having energy E1 (n1) then a photon of frequency v is emitted.
Who first theoretically predicted the existence of the positron, a positively charged electron? He received the Nobel Prize in Physics in 1933. Ans: (Paul Adrien M
Explain Electricity and static electricity Electricity - study of stationary (static) or moving charges Static Electricitiy (Electrostatics) - electric charges at rest
When do you use Wn instead of work - A?
An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass by the equi
GALLIUM PHOSPIDE: It has band gap of 2.3ev. it can be used for light emitting diodes which can emit green or red light. The red light is obtained with zinc or cadmium oxide dop
Field system: The object of the field system is to make a uniform magnetic field, within which the armature rotates. It consists of four parts- yoke, pole core, pole shoe and fiel
How do objects move in one dimension?
FRAME OF REFERENCE: "A set of reference axis needed to locate the position of an object in space is known as a frame of reference"
A woman wearing high heels briefly supports all her weight on the heels. If her mass is 45 kg and each heel has an area of 1.2 cm 2 , what pressure does she exert on the floor
Total height of the gymnast just before falling back down is=(2+.3)=2.3m Energy gained at that point = m*g*h(m=mass, g=gravitational force, h=height) =55*9.8*2.3=1239.7 J
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