Suppose photons are produced in a cathode ray tube (CRT) from electrons which are accelerated across a potential of 23.5 KV. (a) What is the maximum energy, in electron volts, of the photons?(b) What is the maximum frequency, in hertz, of these photons?



Answer :

3.710^-15 joule  is the maximum energy of the photons

voltage= 23.5 = 23500 V

q= 1.6 × 10^-19 coulombs

Energy= qV

E= 3.710^-15 joule

Energy is the ability to perform work in physics. Different shapes, such as potential, kinetic, thermal, electrical, chemical, radioactive, etc., may be assumed by it. Other instances of energy being transmitted from one body to another include heat and work. Energy is always distributed after it has been transferred in accordance with its type. Thus, heat transfer could result in thermal energy, whereas work could result in mechanical energy.

Motion is a trait shared by all forms of energy. For instance, if a body is moving, it possesses kinetic energy. Due to the object's design, which integrates potential energy, a tensioned object, such a spring or bow, has the ability to move even when at rest.

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