Answer: Option (b) is the correct.
Explanation:
It is known that energy is directly proportional to frequency.
Mathematically,
or, E = ............ (1)
where, E = energy
h = Plank's constant
= frequency
This relation shows that higher is the energy then more will be the frequency of electrmagnetic radiation.
Also, ......... (2)
where, c = speed of light
= wavelength
Therefore, substituting value of from equation (2) into equation (1) as follows.
E =
E =
This relation shows that higher is the energy then lower will be the wavelength.
Thus, we can conclude that as the energy of a photon increases, its frequency decreases, is incorrect statement.
Answer:
can you write in english please i cannot understand plzzzzzzzzzzzzzzzzzzzzz
Explanation:
The answer is 6396 years
Let's first calculate a number of half-lives using the equation:
<span>= decimal amount remaining, where n i number of half-lives
</span>
After 15/16 of a given amount of radium-226 has been decayed, that means that the remaining amount is 1/16, which is in decimals 0.0625
So, now we can replace it:
tex] (1/2)^{n} = 0.0625 [/tex]
⇒ n * log(1/2) = log(0.0625)
n * log(0.5) = log(0.0625)
n = log(0.0625)/log(0.5)
n = 4
Now we know that number of half-lives is 4.
The number of half-lives is a quotient of total time elapsed and length of half-life.<span>
<span>So, total time elapsed is a product of a length of half-life (1599 years) and the number of half-lives (4). Since 1599 × 4 = 6396, then a scientist will have to wait 6396 years for decay of 15/16 of a given amount of radium-226.</span></span>
Chlorine, Sulfur, Aluminum, Sodium