A physics professor wants to perform a lecture demonstration of Young\'s double-

Question

A physics professor wants to perform a lecture demonstration of Young's double-slit experiment for her class using the 633-nm light from a He-Nelaser. Because the lecture hall is very large, the interference pattern will be projected on a wall that is 5.0 m from the slits. For easy viewing by all students in the class, the professor wants the distance between the m = 0 and m = 1 maxima to be 35 cm .

Part A

What slit separation is required in order to produce the desired interference pattern?

Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

given data

lamda = 633 nm = 633*10^-9 m

R = 5 m

d = ?

distance between central maxima and first maxima = 35 cm = 0.35 m

distance between central maxima and first maxima = lamda*R/d

0.35 = 633*10^-9*5/d

==> d = 633*10^-9*5/0.35

= 9.04*10^-6 m

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.