The technology in which parabolic mirror arrays are placed in a desert with a water-filled pipe traversing the array is used to
1 answer:
You might be interested in
Complete question:
A light bulb emits light that travels uniformly in all directions. Detailed measurements show that at a distance of 56 m from the bulb, the amplitude of the electric field is 3.78 V/m. What is the average intensity of the light?
Answer:
The average intensity of the light is 0.02 W/m²
Explanation:
Given;
Amplitude of the electric field, E₀ = 3.78 V/m
The average intensity of the light is calculated as follows;
where;
is the average intensity of the light
c is speed of light = 3 x 10⁸ m/s
Therefore, the average intensity of the light is 0.02 W/m²
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.