Monochromatic light falls on two very narrow slits0.042 mm apart. Successive fri

Question

Monochromatic light falls on two very narrow slits0.042 mm apart. Successive fringes on a screen 6.70 m away are 8.9 cm apart near the center of the pattern.

Part A

Determine the wavelength of the light.

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

SubmitMy AnswersGive Up

Part B

Determine the frequency of the light.

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

Monochromatic light falls on two very narrow slits0.042 mm apart. Successive fringes on a screen 6.70 m away are 8.9 cm apart near the center of the pattern.

Part A

Determine the wavelength of the light.

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

SubmitMy AnswersGive Up

Part B

Determine the frequency of the light.

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

Explanation / Answer

The spacing between Successive fringes is given by , Y = (*L)/d
Substituing Values,
8.9 * 10^-2 = (*6.7)/(0.042 * 10^-3)
= 5.579 * 10^-7 m
wavelength of the light, = 557.9 nm

We know,
v = f*
f = v/
f = (3.0*10^8)/(5.579 * 10^-7)
f = 5.38 * 10^14 Hz
Frequency of the light, f = 5.38 * 10^14 Hz

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

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