Suppose a computer manufacturer can build circuit boards according to the following process:12 resistors + 20 insulators + 8 mem
ory chips → 4 circuit boards.How many circuit boards could you make using 5 insulators, assuming you have enough of all the other parts?a. 4b.20c.1d.15e.none of the above
1 answer:
Complete Question:
The complete question is shown on the first uploaded image
Answer:
The answer is option C
Explanation:
From the question we are told that
12 resistors + 20 insulators + 8 memory chips → 4 circuits
Now from this expression we can see that
20 insulators produces 4 circuit
And we are being as to calculate how many circuit 5 insulators would produce
S using basic relation we have that
20 is to 4
then 5 is to ? let call ? = x
applying cross multiplication we have that
20 × x = 4 × 5
Therefore x = (4 × 5) ÷ 20
x = 1 circuit
We can see from our calculation that 5 insulators would produce one circuit
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Explanation:
From first source, kinetic energy () ejected is 1 eV and wavelength of light is
.
From second source, kinetic energy () ejected is 4 eV and wavelength of light is
.
Relation between work function, wavelength, and kinetic energy is as follows.
K.E =
where, h = Plank's constant = J.s
c = speed of light = m/s
Also, it is known that 1 eV = J
Therefore, substituting the values in the above formula as follows.
- From first source,
=
1 eV =
........... (1)
- From second source,
=
........... (2)
Now, divide equation (2) by 2. Therefore, it will become
......... (3)
Now, subtract equation (3) from equation (1), we get the following.
=
= 2 eV
Thus, we can conclude that work function of the metal is 2 eV.