Which statement is true about the ideal mechanical advantage of a third-class lever?
1 answer:
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The wavelength of the wave which is travelling along right with speed of 0. 5 m/s time 4 second point is 2.
<h3>What is the speed of wave?</h3>Speed of wave is the rate by which the wave travels. It can be described as the distance cover by the crest or thrust of it per unit of time. It can be calculated with the following formula,
Here, (f) is the frequency and (λ) is the wavelength.
The frequency is inverse of time. Thus, the value of frequency in time t is,
The speed of the wave is 0.5 m/s. Put the values in the formula,
Thus, the wavelength of the wave which is travelling along right with speed of 0. 5 m/s time 4 second point is 2.
Learn more about the speed of wave here;
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Answer:
Work function of the metal is 3.24 eV.
Explanation:
It is given that,
Wavelength,
Let W is the work function of the metal. It is given by using Einstein's photoelectric effect equation. It is given by :
Since,
So, W = 3.24 eV
So, the work function of the metal is 3.24 eV. Hence, this is the required solution.