A gas laser has a cavity length of 1/3 m and a single oscillation frequency of 9.0 x 1014 Hz. What is the cavity mode number?
1 answer:
Answer:
2 × 10⁶
Explanation:
Data provided in the question:
Cavity length, L =
Oscillation frequency, = 9.0 × 10¹⁴ Hz
Now,
we know,
here,
c is the speed of light = 3 × 10⁸ m/s
= Wavelength of mode m inside the laser cavity
m is the cavity mode number
Thus,
or
=
× 10⁻⁶
Also,
Therefore,
m × × 10⁻⁶ = 2 ×
or
m = 2 × 10⁶
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Explanation:
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Answer:
Stay the same
Explanation:
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