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Chapter 26: Q33PE (page 956)

What is the angular magnification of a telescope that has a100cm focal length objective and a2.50cm focal length eyepiece?

Short Answer

Expert verified

The angular magnification is -40

Step by step solution

01

Concept Introduction

Magnification is the process of expanding something's perceived size rather than its true size. This expansion is measured by a numerical value known as "magnification." When this value is less than one, it denotes a size decrease, often known as minification or de-magnification.

02

Calculating the magnification for a thin lens

The angular magnification is supplied by, as we said before in the idea session.

M=θ'θ=f0fe=-1m0.025m=-40

Therefore, the angular magnification is =-40.

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Most popular questions from this chapter

Unless otherwise stated, the lens-to-retina distance is 2.00 cm.

Calculate the power of the eye when viewing an object 3.00 maway.

Unless otherwise stated, the lens-to-retina distance is 2.00 cm.

Suppose a certain person’s visual acuity is such that he can see objects clearly that form an image4.00μmhigh on his retina. What is the maximum distance at which he can read the 75.0 cmhigh letters on the side of an airplane?

: A mother sees that her child’s contact lens prescription is 0.750 D. What is the child’s near point?

(a) Where does an object need to be placed relative to a microscope for its 0.500 cmfocal length objective to produce a magnification of -400? (b) Where should the 5.00 cm focal length eyepiece be placed to produce a further fourfold ( 4.00 ) magnification?

A small telescope has a concave mirror with a 2.00 mradius of curvature for its objective. Its eyepiece is a 4.00 cm focal length lens. (a) What is the telescope’s angular magnification? (b) What angle is subtended by a 25,000 kmdiameter sunspot? (c) What is the angle of its telescopic image?
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