X-rays Diffraction through Crystals

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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?

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?

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?

Diffraction of light Signup and view all the answers

What is the term for the distance between the centers of two consecutive slits or lines on a diffraction grating?

Element Signup and view all the answers

What is the condition for the wave emitted by two sources to produce interference?

The wave emitted by the two sources should have a constant phase difference. Signup and view all the answers

What is the condition for constructive interference to occur when a monochromatic beam of X-ray is incident onto a crystal surface?

The path difference is equal to a whole number of wavelength Signup and view all the answers

What is the type of electromagnetic radiation that has a wavelength of about 10^-10 m?

X-rays Signup and view all the answers

What is the phenomenon by which X-rays are reflected from the atoms in a crystalline solid?

Diffraction Signup and view all the answers

What is the process by which the electric and magnetic vibration of light waves are restricted to a single plane of vibration?

Polarization Signup and view all the answers

What is the application of X-ray diffraction in determining the structure of biologically important molecules?

All of the above Signup and view all the answers

What is the equation that relates the path difference, d, and the wavelength, λ, in Bragg's law?

n λ = 2d Sin Ѳ Signup and view all the answers

What is the formula for the path difference in diffraction grating?

r q = m λ Signup and view all the answers

What is the condition for constructive interference in a diffraction grating?

The path difference is equal to λ or multiples of λ. Signup and view all the answers

What is the purpose of a diffraction grating in analyzing light?

To measure the wavelength of light. Signup and view all the answers

What happens when light is incident on a slit having a width comparable to the wavelength of light?

An alternating dark and bright pattern can be seen on the screen. Signup and view all the answers

What is the formula for the grating element d?

d = (a + b) Signup and view all the answers

What is the direction of the rays formed after diffraction through the slits?

The rays are brought to focus on a screen. Signup and view all the answers