1.In this lab, we will use the equation d cross times italic sin open parenthese

Question

1.In this lab, we will use the equation d cross times italic sin open parentheses italic theta close parentheses equal m cross times italic lambda for calculation. In this formula, d represents_______ a.Separation between two slits. b.Width of an individual slit. c.Distance between slit screen and observation screen.

2.A beam of light has a wavelength 655 nm. What is its frequency in THz? (THz is Tera Hz, Tera=1012)

3.A laser light has a frequencey of 4.8cross times 10 to the power of 14 Hz. What is its wavelength in nanometer?

4.Constructive interference occurs when the phase difference between two waves is _____. (n is any integer) a. 2 x n x pi b. (2n +1) pi c.(2n + ½)pi

Explanation / Answer

1)

b.Width of an individual slit

2)

frequency

f = c/lambda

f = 458 THz

3)

lambda= c/f

wavelength = 625 nm

4)

a. 2 x n x pi

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