[Answered] Increasing the focal length in a telephoto lens by a factor of nine, while keeping the aperture size ...

This topic contains a solution. Click here to go to the answer

Author Question: Increasing the focal length in a telephoto lens by a factor of nine, while keeping the aperture size ... (Read 103 times)

09madisonrousseau09

Hero Member
Posts: 559

on: Jul 28, 2018

Increasing the focal length in a telephoto lens by a factor of nine, while keeping the aperture size constant, will change the f-number by what factor?
a. 1/3
c. 9
b. 1/9
d. 3

Question 2

Decreasing the aperture diameter of a camera lens by a factor of three will change the f-number by what factor?
a. 3
c. 1/9
b. 9
d. 1/3

Need homework help now?

Ask unlimited questions for free

Ask a Question

Marked as best answer by a Subject Expert

meltdown117

Sr. Member
Posts: 326

Reply #1 on: Jul 28, 2018

Answer to Question 1

C

Answer to Question 2

A

09madisonrousseau09

Hero Member
Posts: 559

Reply #2 on: Jul 28, 2018

meltdown117

Sr. Member
Posts: 326

Reply #3 on: Jul 28, 2018

You're welcome

« previous next »

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.