Question

1. Why is ultraviolet light often used in microscopes?

It has a longer wavelength than visible light, which decreases the diffraction.

It has a shorter wavelength than visible light, which increases the diffraction.

It has a longer wavelength than visible light, which increases the diffraction.

It has a shorter wavelength than visible light, which decreases the diffraction.

2. If we decrease the diameter of the circular aperture, what happens to the angle for Rayleigh’s criterion?

decreases

remains the same

increases

If we increase the wavelength of the light being used, what happens to the angle for Rayleigh’s criterion?

remains the same

increases

decreases

Which is true?

Two objects are resolvable if the angle between them is smaller than that given by Rayleigh’s criterion.

Two objects are resolvable if the angle between them is equal to that given by Rayleigh’s criterion.

Two objects are resolvable if the angle between them is greater than that given by Rayleigh’s criterion.

It contracts away from the central minimum.

If we widen the slit in a diffraction experiment, what happens to the pattern?

It contracts toward the central maximum.

It contracts away from the central minimum.

It expands toward the central maximum.

It expands away from the central minimum.

Answer 1

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