Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 35: Q.1 (page 1016)

Suppose a camera’s exposure is correct when the lens has a focal length of 8.0 mm. Will the picture be overexposed, underexposed, or still correct if the focal length is “zoomed” to 16.0 mm without changing the diameter of the lens aperture? Explain

Short Answer

Expert verified

Picture is underexposed

Step by step solution

01

Step 1.Given information

The focal length is “zoomed” to 16.0 mm without changing the diameter of the lens aperture

02

Step 2.Simplify

We know that,

I∞D2f2

If the shutter speed remains the same, D is not changed and f is increased, hence I is decreased.so the picture is underexposed.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A beam of white light enters a transparent material. Wavelengths for which the index of refraction is n are refracted at angle θ2.

Wavelengths for which the index of refraction is n + δn, where δn<<n, are refracted at angle θ2+δθ.

a). Show that the angular separation of the two wavelengths, in radians, is δθ=-(δn/n)tanθ2.

b). A beam of white light is incident on a piece of glass at 30.0°. Deep violet light is refracted 0.28° more than deep red light. The index of refraction for deep red light is known to be 1.552. What is the index of refraction for deep violet light?

A camera takes a properly exposed photo at f/5.6and 1125s. What shutter speed should be used if the lens is changed to f/4.0?

A hydrogen discharge lamp emits light with two prominent wavelengths: 656nm(red) and 486nm(blue). The light enters

a flint-glass prism perpendicular to one face and then refracts

through the hypotenuse back into the air. The angle between

these two faces is 35°.

a. Use Figure 35.18to estimate to ±0.002the index of refraction

of flint glass at these two wavelengths.

b. What is the angle (in degrees) between the red and blue light

as it leaves the prism?

A microscope has a 20cmtube length. What focal-length objective will give total magnification localid="1649845070556" 500×when used with an eyepiece having a focal length 5.0cm?

White light is incident onto a 30°prism at the 40°angle shown in figurep35.41. violet light emerges perpendicular to the rear face of the prism. The index of refraction of violet light in this glass is 2.0%larger than the index of refraction of red light. At what angle does red light emerges from the rear face?
See all solutions

Recommended explanations on Physics Textbooks

Waves Physics

Read Explanation

Astrophysics

Read Explanation

Magnetism

Read Explanation

Nuclear Physics

Read Explanation

Translational Dynamics

Read Explanation

Radiation

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free