A Fabry-Perot interferometer is used to study a wavelength doublet with A2-A1 = 0.00428 nm at a wavelength of 555 nm. What is the required spacing (in cm) of the two parallel surfaces of the Fabry-Perot interferometer such that the mh bright order of one wavelength coincides with the (m+1) bright order of the other? (Hint: let A¡ A2=Nand consider near-normal incidence beams). O 3.5984 O 1.4394 O 1.7992 O 1.1995 O 2.3989
A Fabry-Perot interferometer is used to study a wavelength doublet with A2-A1 = 0.00428 nm at a wavelength of 555 nm. What is the required spacing (in cm) of the two parallel surfaces of the Fabry-Perot interferometer such that the mh bright order of one wavelength coincides with the (m+1) bright order of the other? (Hint: let A¡ A2=Nand consider near-normal incidence beams). O 3.5984 O 1.4394 O 1.7992 O 1.1995 O 2.3989
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Transcribed Image Text:A Fabry-Perot interferometer is used to study a wavelength
doublet with A2-A = 0.00428 nm at a wavelength of 555 nm.
What is the required spacing (in cm) of the two parallel
surfaces of the Fabry-Perot interferometer such that the
mn bright order of one wavelength coincides with the (m+1)
bright order of the other? (Hint: let A A= 1²and consider
near-normal incidence beams).
O3.5984
O 1.4394
O 1.7992
O 1.1995
O 2.3989
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