Two waves,one with amplitude A and the second with amplitude 2A,are out of phase by 180S1U1P1$\circ$S1S1P0.The resultant intensity is

A) zero B) A C) A2 D) 2A2 E) (3 A) 2 A) zero B) A C) A2 D) 2A2 E) (3 A) 2

Which of two diffraction gratings,one with N1 and the other with N2 slits per centimeter,has the greater resolving power if N1 is greater than N2?

A) the grating with N1 slits per centimeter B) the grating with N2 slits per centimeter C) They both have the same resolving power,but the one with N1 slits per centimeter has sharper spectral lines. D) They both have the same resolving power,but the one with N2 slits per centimeter has sharper spectral lines. E) The width of the individual slits must be known to answer this question. A) the grating with N1 slits per centimeter B) the grating with N2 slits per centimeter C) They both have the same resolving power,but the one with N1 slits per centimeter has sharper spectral lines. D) They both have the same resolving power,but the one with N2 slits per centimeter has sharper spectral lines. E) The width of the individual slits must be known to answer this question.

Exam 33: Interference and Diffraction

Green light of wavelength 500 nm is incident normally on a diffraction grating that has 5300 lines/cm.The second-order image is diffracted at an angle from the normal of

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Question 61

Which of the following statements is true?

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Question 62

You illuminate a slit 0.20 mm wide with monochromatic light of wavelength 600 nm,and focus the Fraunhofer diffraction pattern on a screen with a lens of focal length 1.50 m.The distance on the screen from the center of the central maximum to the first minimum is

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Question 63

Light of wavelength 500 nm illuminates parallel slits and produces an interference pattern on a screen that is 1 m from the slits.In terms of the initial intensity I₀,the light's intensity in the interference pattern at a point for which the path difference is 100 nm is

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Question 64

A parallel beam of sodium light of wavelength 589 nm is normally incident on a diffraction grating.If the second order diffraction maximum is observed at 50.25 degrees to the normal,then calculate the number of lines per cm of the grating.

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Question 65

Two flat planes of glass are laid on top of one another.The upper plane is slightly raised due to the insertion of a thin piece of paper at one end and an air wedge is thus formed.Light of wavelength 500 nm is normally incident on the glass from above and interference fringes are observed by reflection with 2.5 fringes per cm.Calculate the angle of the wedge.

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Question 66

You place a convex lens on top of a flat plate of glass and illuminate it with monochromatic light of wavelength 600 nm.You observe a dark circle at the center of the lens,surrounded by a series of concentric dark rings.What is the thickness of the air space between the lens and the flat glass plate where you see the sixth dark ring?

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Question 67

A monochromatic beam of light of wavelength 600 nm falls on a grating at normal incidence and produces a second-order image at an angle of 30º.The grating spacing must be

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Question 68

Light of wavelength 650 nm is incident on a slit of width 25.0 µm.At what angle is the second diffraction minimum observed?

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Question 69

In accordance with the Rayleigh criterion,two points can be just resolved if the centers of their diffraction patterns are separated by

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Question 70

Light of wavelength 500 nm illuminates parallel slits and produces an interference pattern on a screen that is 1 m from the slits.In terms of the initial intensity I₀,the light's intensity in the interference pattern at a point for which the path difference is 300 nm is

(Multiple Choice)

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Question 71

The size of the smallest things that can be seen with an optical microscope is limited by diffraction.Which of the following could help a microscopist see smaller things?

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Question 72

A single-slit diffraction pattern is displayed on a screen 0.900 m away from the slit.If the wavelength of the light is 600 nm and the slit is 1.50 $\times$ 10^-4 m wide,the distance from the first minimum on the right to the first minimum on the left is

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Question 73

Which,if any,of the following conditions is not necessary for the light waves from two sources to be coherent?

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Question 74

The type of electromagnetic radiation that is employed when crystals are used as diffraction gratings is

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Question 75

Use the figure for the next two questions. $Use the figure for the next two questions. -The interference pattern is from a convex lens placed on a flat reflecting surface using a monochromatic light of wavelength \lambda = 550 nm.The distance between the lens and the flat surface at position A is$ -The interference pattern is from a convex lens placed on a flat reflecting surface using a monochromatic light of wavelength $\lambda$ = 550 nm.The distance between the lens and the flat surface at position A is

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Question 76

Two slits separated by 1.0 mm are illuminated with light of a single unknown wavelength.The tenth bright line from the central point of the interference pattern is observed to be at an angle of 0.34º.What is the wavelength of the light?

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Question 77

For a grating with d = 4.5 $\lambda$ ,the maximum order m of an interference maximum that can be observed for a specified $\lambda$ is

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Question 78

Two waves,one with amplitude A and the second with amplitude 2A,are out of phase by 180^$\circ$.The resultant intensity is

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Question 79

Which of two diffraction gratings,one with N₁ and the other with N₂ slits per centimeter,has the greater resolving power if N₁ is greater than N₂?

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Question 80

Showing 61 - 80 of 91

Exam 33: Interference and Diffraction

Green light of wavelength 500 nm is incident normally on a diffraction grating that has 5300 lines/cm.The second-order image is diffracted at an angle from the normal of

Which of the following statements is true?

You illuminate a slit 0.20 mm wide with monochromatic light of wavelength 600 nm,and focus the Fraunhofer diffraction pattern on a screen with a lens of focal length 1.50 m.The distance on the screen from the center of the central maximum to the first minimum is

Light of wavelength 500 nm illuminates parallel slits and produces an interference pattern on a screen that is 1 m from the slits.In terms of the initial intensity I0,the light's intensity in the interference pattern at a point for which the path difference is 100 nm is

A parallel beam of sodium light of wavelength 589 nm is normally incident on a diffraction grating.If the second order diffraction maximum is observed at 50.25 degrees to the normal,then calculate the number of lines per cm of the grating.

A monochromatic beam of light of wavelength 600 nm falls on a grating at normal incidence and produces a second-order image at an angle of 30º.The grating spacing must be

Light of wavelength 650 nm is incident on a slit of width 25.0 µm.At what angle is the second diffraction minimum observed?

In accordance with the Rayleigh criterion,two points can be just resolved if the centers of their diffraction patterns are separated by

Light of wavelength 500 nm illuminates parallel slits and produces an interference pattern on a screen that is 1 m from the slits.In terms of the initial intensity I0,the light's intensity in the interference pattern at a point for which the path difference is 300 nm is

The size of the smallest things that can be seen with an optical microscope is limited by diffraction.Which of the following could help a microscopist see smaller things?

A single-slit diffraction pattern is displayed on a screen 0.900 m away from the slit.If the wavelength of the light is 600 nm and the slit is 1.50 ×\times× 10-4 m wide,the distance from the first minimum on the right to the first minimum on the left is

Which,if any,of the following conditions is not necessary for the light waves from two sources to be coherent?

The type of electromagnetic radiation that is employed when crystals are used as diffraction gratings is

Use the figure for the next two questions. -The interference pattern is from a convex lens placed on a flat reflecting surface using a monochromatic light of wavelength λ\lambdaλ = 550 nm.The distance between the lens and the flat surface at position A is

Two slits separated by 1.0 mm are illuminated with light of a single unknown wavelength.The tenth bright line from the central point of the interference pattern is observed to be at an angle of 0.34º.What is the wavelength of the light?

For a grating with d = 4.5 λ\lambdaλ ,the maximum order m of an interference maximum that can be observed for a specified λ\lambdaλ is

Two waves,one with amplitude A and the second with amplitude 2A,are out of phase by 180 ∘\circ∘ .The resultant intensity is

Which of two diffraction gratings,one with N1 and the other with N2 slits per centimeter,has the greater resolving power if N1 is greater than N2?

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Light of wavelength 500 nm illuminates parallel slits and produces an interference pattern on a screen that is 1 m from the slits.In terms of the initial intensity I₀,the light's intensity in the interference pattern at a point for which the path difference is 100 nm is

Light of wavelength 500 nm illuminates parallel slits and produces an interference pattern on a screen that is 1 m from the slits.In terms of the initial intensity I₀,the light's intensity in the interference pattern at a point for which the path difference is 300 nm is

A single-slit diffraction pattern is displayed on a screen 0.900 m away from the slit.If the wavelength of the light is 600 nm and the slit is 1.50 $\times$ 10^-4 m wide,the distance from the first minimum on the right to the first minimum on the left is

For a grating with d = 4.5 $\lambda$ ,the maximum order m of an interference maximum that can be observed for a specified $\lambda$ is

Two waves,one with amplitude A and the second with amplitude 2A,are out of phase by 180^$\circ$.The resultant intensity is

Which of two diffraction gratings,one with N₁ and the other with N₂ slits per centimeter,has the greater resolving power if N₁ is greater than N₂?