Asked Jan 19, 2020

A simple camera telephoto lens consists of two lenses. The objective lens has a focal length f1 = +40.8 cm. Precisely 36.6 cm behind this lens is a concave lens with a focal length f2 = -14.8 cm. The object to be photographed is 3.92 m in front of the objective lens.

(a) What is the lateral magnification of this lens combination?


Expert Answer

Step 1

The image from the first lens will act as the object of the second.

The distance to the image from the objective lens can be calculated as follows,

Physics homework question answer, step 1, image 1
Step 2

So the object distance of the concave lens is –(45.55-36.6) = -8.95cm.


Physics homework question answer, step 2, image 1

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: A locomotive engine of mass 1.80*10^5kg starts from rest on horizontal train tracks. The locomotive ...

A: GivenMass of the locomotive mL = 1.80 x 105 kgInitial velocity of the locomotive uL = 0 m/sMass of t...


Q: At a certain moment of time the angle between velocity and the acceleration of a particle is greater...

A: When an object is moving in a uniform circular motion, at any point of the motion the angle between ...


Q: What shape does a liquid take when it weighs nothing?

A: When the fluid has no weight, the surface tension itself is the force acting on it. Due to surface t...


Q: Two point charges, Q1=−32μCQ1Q_1=−32μC and Q2=41μCQ2Q_2=41μC, are separated by a distance of 12 cmcm...

A: The electric field due to charge Q at distance r is given by


Q: Question 6.1a: A toy car having mass m = 1.25 kg collides inelastically with a toy train of mass M =...

A: The given values are,


Q: Explain why a fluid flowing out of a small hole in a vessel results in a backward thrust on the vess...

A: The area through which water is flowing out of the hole in the vessel is small. According to equatio...


Q: Why are you more easily able to sink to the bottom of the swimming pool when you expel as much air a...

A: When you inhale air into your lungs, you are able to float because air is lighter than water.


Q: A toy car having mass m = 1.20 kg collides inelastically with a toy train of mass M = 3.90 kg. Befor...

A: Click to see the answer


Q: A shot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51...

A: (A) As the shot is released by the shot putter at a height above the ground at an angle, the shot de...