Free problems arranged by topic
 Kinematics Dynamics Conservation laws Thermodynamics Waves Electricity Magnetism Optics Fluids and elasticity Ideal gas AC current

 Free problems: all problems
 Kinematics Dynamics Conservation laws Thermodynamics Waves Electricity Magnetism Optics Fluids and elasticity Ideal gas AC current

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# Physics problems:Optics

Part 2

Problem 11.

Find the width of the central maximum in a single-slit experiment. The wavelength of the light is 550 nm, the width of the slit is 0.2 mm and the distance between the screen and the slit is 1.5 m.

Problem 12.

A diffraction grating diffracts light at . What is the wavelength of the light if the grating has 1000 lines per mm?

Problem 13.

A diffraction grating is illuminated simultaneously with light of wavelength 600 nm and light with unknown wavelength. The third-order maximum of the unknown wavelength exactly overlap with the first-order maximum of the light with wavelength 600 nm. What is the unknown wavelength?

Solution

Problem 14.

A diffraction grating produces first-order maximum at  for the light with wavelength 600 nm. How many lines per millimeter does the grating have?

Solution

Problem 15.

Light of wavelength 550 nm illuminates a narrow slit with the width of 0.2 mm. The diffraction pattern is observed on a screen. The distance between the first and the third dark fringes on the screen is 5 mm. What is the distance between the slit and the screen?

Problem 16.

For what slit-width to wavelength ratio does the first minimum of a single-slit diffraction pattern appear at ?

Solution

Problem 17.

The second minimum of a single-slit diffraction pattern appears at . What is the slit-width to wavelength ratio?

Solution

Problem 18.

Light of wavelength 600 nm is incident on a single slit. What is the largest slit for which there are no minima in the diffraction pattern?

Problem 19.

What is the width of the slit for which the first minimum is at  when the slit is illuminated by the light with the wavelength of 650 nm?

Solution

Problem 20.

A light wave has wavelength 600 nm in vacuum. What is the wavelength of the light as it travels through water (index of refraction = 1.33)?

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