A Broad Spectrum of Light $\lambda$ = 550 Nm) Illuminates Normally a Thin Wedge of Glass

question 43

Multiple Choice

A broad spectrum of light ( $\lambda$ = 550 nm) illuminates normally a thin wedge of glass (n = 1.50) . If the thick edge of the glass is 0.02 mm, the number of dark fringes observed is

• A) 109
• B) 99
• C) 73
• D) 55
• E) 33

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