- #1
steven10137
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[SOLVED] Potential Difference argh ...
What is the minimum potential difference that must be applied across an X-ray tube to observe a line of frequency 1.61x10^16Hz
OK well we can define potential difference as the amount of energy required to emit this X-ray yeah?
[tex]
\begin{array}{l}
E = hf \\
= \left( {6.63 \times 10^{ - 34} } \right)\left( {1.61 \times 10^{16} } \right) \\
= 1.07 \times 10^{ - 17} J \\
\end{array}
[/tex]
But I thought that potential difference was measured in volts?
Just need clarification here
Thanks
Steven
Homework Statement
What is the minimum potential difference that must be applied across an X-ray tube to observe a line of frequency 1.61x10^16Hz
Homework Equations
OK well we can define potential difference as the amount of energy required to emit this X-ray yeah?
The Attempt at a Solution
[tex]
\begin{array}{l}
E = hf \\
= \left( {6.63 \times 10^{ - 34} } \right)\left( {1.61 \times 10^{16} } \right) \\
= 1.07 \times 10^{ - 17} J \\
\end{array}
[/tex]
But I thought that potential difference was measured in volts?
Just need clarification here
Thanks
Steven