Physics: What is threshold frequency

If binomial (3x+2) is a factor of some polynomial, then number is this polynomial s root. Check all polynomials:A. For the polynomial B. For the polynomial C. For the polynomial D. For the polynomial correct choice is B...

What is threshold frequency - id7625118, amahar4000

Ответ:

Auttyrain7596

02.02.2022

Physics

Threshhold frequency is defined as the minimum light frequency necessary to start photo-electric emission from the surface. This frequency is just effecient enough to emit electrons without any additional force or energy. this minimum frequency creates the necessary result that is sought by the person. The photo electric emission for certain metals can occir with threshhold frequency. The importance of this threshhold frequency lies in the fact that this has been used to create numerous instruments like amplifiers for use of people.

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Ответ:

igtguith

03.11.2021

Physics

If binomial (3x+2) is a factor of some polynomial, then number $x=-\dfrac{2}{3}$ is this polynomial's root. Check all polynomials:

A. For the polynomial 6x^3 + 3x^2 + 4x + 2,

$6\left(-\dfrac{2}{3}\right)^3 + 3\left(-\dfrac{2}{3}\right)^2 + 4\left(-\dfrac{2}{3}\right) + 2=-\dfrac{16}{9}+\dfrac{4}{3}-\dfrac{8}{3}+2=-\dfrac{10}{9}\neq 0.$