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Questions and Answers
What is the condition for the two sources of waves to produce interference?
What is the condition for the two sources of waves to produce interference?
- The two sources of waves should be very narrow and close to each other. (correct)
- The wave emitted by the two sources should have opposite phase differences.
- The amplitude of the two waves should be different.
- The two sources of waves should be very far apart.
What is the purpose of a diffraction grating?
What is the purpose of a diffraction grating?
- To bend light around obstacles
- To measure the amplitude of light waves
- To measure the accurate wavelength of light (correct)
- To produce coherent light sources
What is the expression used to calculate the wavelength of light using Michelson's interferometer?
What is the expression used to calculate the wavelength of light using Michelson's interferometer?
- 𝑳= 𝒎 d / 𝝀
- 𝑳= 𝒎 d / 𝝀² (correct)
- 𝑳= 𝒎 d × 𝝀²
- 𝑳= 𝒎 d / 𝝀³
What is the property of bending of light around obstacles and spreading of light waves into the geometrical shadow of an obstacle?
What is the property of bending of light around obstacles and spreading of light waves into the geometrical shadow of an obstacle?
What is the term for the distance between the centers of two consecutive slits or lines on a diffraction grating?
What is the term for the distance between the centers of two consecutive slits or lines on a diffraction grating?
What is the condition for the wave emitted by two sources to produce interference?
What is the condition for the wave emitted by two sources to produce interference?
What is the condition for constructive interference to occur when a monochromatic beam of X-ray is incident onto a crystal surface?
What is the condition for constructive interference to occur when a monochromatic beam of X-ray is incident onto a crystal surface?
What is the type of electromagnetic radiation that has a wavelength of about 10^-10 m?
What is the type of electromagnetic radiation that has a wavelength of about 10^-10 m?
What is the phenomenon by which X-rays are reflected from the atoms in a crystalline solid?
What is the phenomenon by which X-rays are reflected from the atoms in a crystalline solid?
What is the process by which the electric and magnetic vibration of light waves are restricted to a single plane of vibration?
What is the process by which the electric and magnetic vibration of light waves are restricted to a single plane of vibration?
What is the application of X-ray diffraction in determining the structure of biologically important molecules?
What is the application of X-ray diffraction in determining the structure of biologically important molecules?
What is the equation that relates the path difference, d, and the wavelength, λ, in Bragg's law?
What is the equation that relates the path difference, d, and the wavelength, λ, in Bragg's law?
What is the formula for the path difference in diffraction grating?
What is the formula for the path difference in diffraction grating?
What is the condition for constructive interference in a diffraction grating?
What is the condition for constructive interference in a diffraction grating?
What is the purpose of a diffraction grating in analyzing light?
What is the purpose of a diffraction grating in analyzing light?
What happens when light is incident on a slit having a width comparable to the wavelength of light?
What happens when light is incident on a slit having a width comparable to the wavelength of light?
What is the formula for the grating element d?
What is the formula for the grating element d?
What is the direction of the rays formed after diffraction through the slits?
What is the direction of the rays formed after diffraction through the slits?
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