Answer:
The right solution is:
(a) 2.87 eV
(b) 1.4375 eV
Explanation:
Given:
Wavelength,
= 433 nm
Potential difference,
= 1.43 V
Now,
(a)
The energy of photon will be:
E = 
= 
or,
= 
= 
(b)
As we know,
⇒ 
By substituting the values, we get
⇒ 
⇒ 
or,
⇒ 
⇒ 
0.00032cm*4.02=1.2864 × 10^-3 in scientific notation.
Answer:
Explanation:
We have,
The surface temperature of the star is 60,000 K
It is required to find the wavelength of a star that radiated greatest amount of energy. Wein's displacement law gives the relation between wavelength and temperature such that :
Here,
= wavelength
So, the wavelength of the star is 
.
The conclusion is; Cathy's dad has gone fishing.
<h3>What are conclusions in conditional statements?</h3>
A conditional statement is a statement with a hypothesis which is then followed by a conclusion.
A conditional statement has two parts; "if" and "then"
The hypothesis is “if,” part of a conditional statement.
The conclusion is the “then,” part of a conditional statement.
Considering the given conditional statements:
1. If it's Saturday, then Cathy's dad goes fishing.
2. If it's Saturday, then Cathy's dad goes fishing.
Since the if part is true, the conclusion will be, Cathy's dad has gone fishing.
In conclusion, a conditional statement consists of a hypothesis and a conclusion.
Learn more about conditional statements at: brainly.com/question/21170
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Through Shannon's Theorem, we can calculate the capacity of the communications channel using the value of its bandwidth and signal-to-noise ratio. The capacity, C, can be expressed as
C = B × log₂(1 + S/N)
where B is the bandwidth of the channel and S/N is its signal-to-noise ratio.
Since the given SN ratio is in decibels, we must first express it as a ratio with no units as
SN (in decibels) = 10 × log (S/N)
30 = 10log(S/N)
log(S/N) = 3
S/N = 10³ = 1000
Now that we have S/N, we can solve for its capacity (in bits per second) as
C = 4000 × log₂(1 + 1000)
C = 39868.91 bps
Thus, the maximum capacity of the channel is 39868 bps or 40 kbps.
Answer: 40 kbps
