Log In Start studying!
Answers without the blur. Sign up and see all textbooks for free! Illustration

Q 66

Expert-verified
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 993

Answers without the blur.

Just sign up for free and you're in.

Illustration

Short Answer

A 2.0-cm-tall candle flame is 2.0 m from a wall. You happen to have a lens with a focal length of 32 cm. How many places can you put the lens to form a well-focused image of the candle flame on the wall? For each location, what are the height and orientation of the image?

Lens can be put at two locations that is 160 cm and 40 cm. Their Heights will be 0.50 cm and 8.00 cm respectively.

See the step by step solution

Step by Step Solution

Step 1. Given information is :Height of the flame candle, h = 2.0 cmDistance between candle flame and the wall = 2.0 mFocal length of the lens, f = 32 cm

We need to calculate the number of places where we can put the lens to form a well-focused image of the candle flame on the wall and height & orientation of the image at each location.

Step 2. Using thin Lens Formula.

Therefore, The lens can be put at 2 different locations that is 160 cm and 40 cm.

When s = 160 cm

s' = 200 cm - 160 cm = 40 cm

When s = 40 cm

s' = 200 cm - 40 cm = 160 cm

Therefore Magnification M when s = 160 cm can be calculated as :

Therefore,

When s = 40 cm,

Recommended explanations on Physics Textbooks

94% of StudySmarter users get better grades.

Sign up for free
94% of StudySmarter users get better grades.