A) allows using a slower shutter speed. B) causes more spherical aberration. C) allows a larger depth of focus. D) is not related to any of the above options. A) allows using a slower shutter speed. B) causes more spherical aberration. C) allows a larger depth of focus. D) is not related to any of the above options.

A) diverging lens to form an imaginary image. B) converging lens to form a real image. C) converging lens to form an imaginary image. D) diverging lens to form a real image. A) diverging lens to form an imaginary image. B) converging lens to form a real image. C) converging lens to form an imaginary image. D) diverging lens to form a real image.

Exam 26: Applications of Optics

A camera has a lens that has an adjustable film distance used for focusing purposes. When the object being photographed is at a very large distance, the distance from the lens to the film is 50.0 mm. What would be the lens-to-film distance for an in-focus object 2.00 m from the camera?

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Question 1

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An unclad optical fiber has index of refraction 1.40. What is the acceptance angle for this fiber if it is submerged in a fluid with index of refraction 1.30? The acceptance angle is the greatest angle at which the light enters the end of the fiber and still causes total internal reflection.

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Question 2

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A telescope has an objective lens with a focal length of 90 cm and an eyepiece of focal length 3.0 cm. What is the angular magnification of the telescope?

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Question 3

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The Yerkes refracting telescope has a 1-m diameter objective lens of focal length 20 m and an eyepiece of focal length 2.0 cm. What is the magnification of the planet Mars as seen through this telescope?

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Question 4

A lens is used as a magnifier. Which of the following statements is incorrect?

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Question 5

A camera is used to photograph the full moon, which has an angular diameter of 0.51°. The image on the film is 2.5 mm in diameter. What is the focal length of the lens?

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Question 6

A refracting astronomical telescope has objective and eyepiece lenses of focal lengths 38 cm and 0.40 cm, respectively. What is the angular magnification of this instrument?

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Question 7

Changing the f-number of a camera by two stops by going from f/16 to f/8 will change the intensity of the light hitting the film by a factor of:

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Question 8

Using a camera with a fixed focal length lens, how will increasing the f-number affect the depth of focus and the intensity of the light reaching the ccd (or film)?

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Question 9

A converging lens will be prescribed by the eye doctor to correct which of the following?

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Question 10

If the objective lens of a compound microscope is replaced with a lens of double the focal length while the eyepiece also has its focal length halved, what will happen to the overall magnification of the microscope?

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Question 11

A high f-number:

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Question 12

A CD is made with a plastic coating with index of refraction n and is used with a laser that produces a wavelength $\lambda$ in the plastic. Which of the following pit depths would produce the desired destructive interference in this situation?

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Question 13

Decreasing the aperture diameter of a camera lens by a factor of three will change the f-number by what factor?

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Question 14

An astronomical telescope has an objective lens with focal length f_o and has an eyepiece with focal length f_e. A second telescope has objective and eyepiece lenses with half the focal length of the first telescope. Which telescope gives the greater magnification and by what factor?

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Question 15

A camera uses a:

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Question 16

A camera has a lens of focal length 50 mm and an f-number of 4.0. What is the diameter of the lens?

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Question 17

A given individual is unable to see objects clearly when they are beyond 75 cm. What focal length contact lens should be used to correct this problem?

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Question 18

Even relatively small astronomical telescopes are ordinarily not used for terrestrial observation because:

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Question 19

The Palomar reflecting telescope has a parabolic mirror with an 80-m focal length. What is the magnification achieved when an eyepiece of focal length 5.0 cm is used?

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Question 20

Showing 1 - 20 of 55

Exam 26: Applications of Optics

A camera has a lens that has an adjustable film distance used for focusing purposes. When the object being photographed is at a very large distance, the distance from the lens to the film is 50.0 mm. What would be the lens-to-film distance for an in-focus object 2.00 m from the camera?

An unclad optical fiber has index of refraction 1.40. What is the acceptance angle for this fiber if it is submerged in a fluid with index of refraction 1.30? The acceptance angle is the greatest angle at which the light enters the end of the fiber and still causes total internal reflection.

A telescope has an objective lens with a focal length of 90 cm and an eyepiece of focal length 3.0 cm. What is the angular magnification of the telescope?

The Yerkes refracting telescope has a 1-m diameter objective lens of focal length 20 m and an eyepiece of focal length 2.0 cm. What is the magnification of the planet Mars as seen through this telescope?

A lens is used as a magnifier. Which of the following statements is incorrect?

A camera is used to photograph the full moon, which has an angular diameter of 0.51°. The image on the film is 2.5 mm in diameter. What is the focal length of the lens?

A refracting astronomical telescope has objective and eyepiece lenses of focal lengths 38 cm and 0.40 cm, respectively. What is the angular magnification of this instrument?

Changing the f-number of a camera by two stops by going from f/16 to f/8 will change the intensity of the light hitting the film by a factor of:

Using a camera with a fixed focal length lens, how will increasing the f-number affect the depth of focus and the intensity of the light reaching the ccd (or film)?

A converging lens will be prescribed by the eye doctor to correct which of the following?

If the objective lens of a compound microscope is replaced with a lens of double the focal length while the eyepiece also has its focal length halved, what will happen to the overall magnification of the microscope?

A high f-number:

A CD is made with a plastic coating with index of refraction n and is used with a laser that produces a wavelength λ\lambdaλ in the plastic. Which of the following pit depths would produce the desired destructive interference in this situation?

Decreasing the aperture diameter of a camera lens by a factor of three will change the f-number by what factor?

An astronomical telescope has an objective lens with focal length fo and has an eyepiece with focal length fe. A second telescope has objective and eyepiece lenses with half the focal length of the first telescope. Which telescope gives the greater magnification and by what factor?

A camera uses a:

A camera has a lens of focal length 50 mm and an f-number of 4.0. What is the diameter of the lens?

A given individual is unable to see objects clearly when they are beyond 75 cm. What focal length contact lens should be used to correct this problem?

Even relatively small astronomical telescopes are ordinarily not used for terrestrial observation because:

The Palomar reflecting telescope has a parabolic mirror with an 80-m focal length. What is the magnification achieved when an eyepiece of focal length 5.0 cm is used?

Introduction

Motion, Forces, and Newtons Laws

Forces and Motion in One Dimension

Forces and Motion in Two and Three Dimensions

Circular Motion and Gravitation

Work and Energy

Momentum, Impulse, and Collisions

Rotational Motion

Energy and Momentum of Rotational Motion

Fluids

Harmonic Motion and Elasticity

Waves

Sound

Temperature and Heat

Gases and Kinetic Theory

Thermodynamics

Electric Forces and Fields

Electric Potential

Electric Currents and Circuits

Magnetic Fields and Forces

Magnetic Induction

Alternating-Current Circuits and Machines

Electromagnetic Waves

Geometrical Optics

Wave Optics

Relativity

Quantum Theory

Atomic Theory

Nuclear Physics

Physics in the 21st Century

Filters

A CD is made with a plastic coating with index of refraction n and is used with a laser that produces a wavelength $\lambda$ in the plastic. Which of the following pit depths would produce the desired destructive interference in this situation?

An astronomical telescope has an objective lens with focal length f_o and has an eyepiece with focal length f_e. A second telescope has objective and eyepiece lenses with half the focal length of the first telescope. Which telescope gives the greater magnification and by what factor?