Answered: magnifying glass is taken out on a…

magnifying glass is taken out on a sunny day and it concentrates sunlight to a small spot 8.0x 10-2 from the lens center. Calculate a) the focal length of the lens b) the power of lens

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter26: Image Formation By Mirrors And Lenses

Section: Chapter Questions

Problem 55P

See similar textbooks

Related questions

Q: A 1.5 cm high object is situated 30.0 cm in front of a concave mirror that has a radius of curvature…

Q: A converging lens causes an object 80.4 cm from the lens to create an image 78.6 cm from the lens on…

Q: In Ramsden's eyepiece a coaxial lens system is used. There are two lenses in air and are of equal…

Q: The angle subtended at the eye by an object is equal to the angle subtended at the eye by the…

A: The distinct vision for a normal human being is 25 cm. An object closer to this distance can't be…

Q: An object is placed 35 cm from a convex lens, whose focal length is 15 cm. Find the location of the…

Q: An object is placed at a distance of 30.0 cm from a thin converging lens along its axis. The lens…

Q: A 0.20 m tall object is placed 0.44 m from a converging lens with a 0.07 m focal length. How tall is…

Q: A concave mirror has a focal length of 47 cm. The image formed by this mirror is in front of the…

A: Given data :- Using sign convention, we have focal length f = -47 cm distance of image v = -103 cm

Q: focal length

Q: An object and a screen are separated by 15.0 cm. A convex lens is placed between them, 6.82 cm from…

Q: What will be the focal length(f) of the lens in the below diagram 46.9 22 cm

A: data from figure: object distance - distance between object and lens (u) = 22 cm image distance -…

Q: A 38.0-cm-focal-length converging lens is 28.0 cmbehind a diverging lens. Parallel light strikes the…

A: Given data: Focal length of the converging lens, fc=38.0 cm Distance between both the lenses, d=28.0…

Q: An amoeba is 0.305 cm away from the 0.300 cm focal length objective lens of a microscope. An…

A: The given values are, do=0.305 cmfo=0.300 cmde=20.0 cmfe=2.00 cm

Q: An object 4.8 cm tall is 38.0 cm from a concave lens. The resulting image is two-fifths as large as…

A: Let us say that the object distance is ‘u’ and the image distance is ‘v’ from the optical centre of…

Q: Both sides of a lens will have a focal point. True or False

A: Light rays that are parallel to the optical axis will meet on the focal point .Light rays that are…

Q: An object is placed 28 cm from a convex spherical mirror with a focal length of 21 cm. Estimate…

Q: A lcm tall object is 6cm in front of a convex mirror that has 2cm focal length. a) Calculate the…

Q: dental hygienist uses a small concave mirror to look at the back of a patient's tooth. If the mirror…

A: The solution of this question is given below....

Q: The focal length of a convex lens is 25cm.Express its power with sign.

A: Formula for the power of a lens is:

Q: A concave mirror with a focal length of 36 cm produces animage whose distance from the mirror is…

Q: An object is placed 30.0 cm from a + 5.0 D lens. A spherical mirror with focal length 25 cm is…

A: Given: The object is placed at d=30 cm. The power is P=+5 D. The focal length is f=25 cm. The…

Q: A concave mirror has a radius of curvature of 35.0 cm. What is its focal length? A ladybug 7.70 mm…

Q: An object is located at 20.0 cm to the left of the diverging lens having a focal length of 32.0 cm.…

A: The position of the object, u is 20.0 cm. The focal length of the given lens, f is 32.0 cm.

Q: A converging mirror has the focal length of 15 cm. For the object distance of 25cm draw the ray…

Q: If a converging lens forms a real, inverted image 11.0 cm to the right of the lens when the object…

A: Given Object distance u = -47cm Image distance v = 11cm Lens formula is: 1/f = 1/v -1/u Putting…

Q: A doctor examines a mole with a 15.5Cm focal Length magnifying glass held 12cm from the mole.…

A: focal length of lens (f) = 15.5 cm Distance of mole from lens (d) = 12 cm

Q: Find the focal length of a lens that produces an inverted image three times the size of a small…

Q: An object of size 3.0 cm is placed 14 cm in front of a concave lens of focal length 21 cm. Describe…

A: object height (h) = 3 cm object distance (d) = 14 cm focal length of concave lens (f) = - 21 cm

Q: Find the focal length of a lens that produces an inverted image six times the size of a small object…

Q: An antelope is 20.0 m from a converging lens with a focal length of 30.0 cm. The lens forms an image…

Q: A converging lens causes an object 58 cm from the lens to create an image 74.5 cm from the lens on…

Q: A sharp image is located 391 mm behind a 275-mm-focal-length converging lens. Find the object…

A: Given data The focal length is given as f = 275 mm. The image distance is given as v = 391 mm.…

Q: • A mirrored-glass gazing globe in a garden is 31.9 cm in diameter.What is the focal length of the…

Q: The focal length of a concave mirror is 30 cm. Find the position of the object in front of the…

Q: A lens when placed on a plane mirror, then object needle and its image coincide at 15 cm. The focal…

Q: An object and a screen are separated by 15.0 cm. A convex lens is placed between them, 6.82 cm from…

A: Given, object distance, u = 6.82 cm, and u + v = 15 cm, where v is the image distance, 6.82 cm + v…

Q: An object is placed 8 cm in front of converging lens . Find the focal length of lens if the…

A: The image distance is,

Q: An object is placed 36cm to the left of a converging lens. The resulting image is five times the…

Q: A thin lens has a focal point located 16.8 cm from the lens surface. Determine the object location…

Q: A lens can be characterized by its power, which(a) is the same as the magnification.(b) tells how…

A: The power of the lens is, P=1f here f is the focal length of the lens.

Q: The image of a distant tree is virtual and very smallwhen viewed in a curved mirror. The image…

A: Given: The object distance is v=-19 cm. As the image is virtual and very small. so the image…

Concept explainers

Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.

Question

A magnifying glass is taken out on a sunny day and it concentrates sunlight to a small spot 8.0x 10^-2 from the lens center.

Calculate

a) the focal length of the lens

b) the power of lens

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

. A small object is placed to the left of a convex lens and on its optical axis. The object is 30 cm from the lens, which has a focal length of 10 cm. Determine the location of the image formed by the lens. Describe the image.
The objective and the eyepiece of a microscope have the focal lengths 3 cm and 10 cm respectively. Decide about the distance between the objective and the eyepiece if we need a 10 x magnification from the objective/eyepiece compound system.
A lamp of height S cm is placed 40 cm in front of a converging lens of focal length 20 cm. There is a plane mirror 15 cm behind the lens. Where would you find the image when you look in the mirror?
An object viewed with the naked eye subtends a 2° angle. If you view the object through a 10 x magnifying glass, what angle is subtended by the image formed on your retina?
In a reflecting telescope the objective is a concave mirror of radius of curvature 2m and an eyepiece is a convex lens of focal length 5 cm. Find the apparent size of a 25-m tree at a distance of 10 km that you would perceive when looking through the telescope.
A converging lens has a focal length of 10.0 cm. Locate the object if a real image is located at a distance from the lens of (a) 20.0 cm and (b) 50.0 cm. What If? Redo the calculations if the images are virtual and located at a distance from the lens of (c) 20.0 cm and (d) 50.0 cm.
A concave mirror of radius of curvature 10 cm is placed 30 cm from a thin convex lens of focal length 15 cm. Find the location and magnification of a small bulb sitting 50 cm from the lens by using the algebraic method.
A dentist uses a spherical mirror to examine a tooth. The tooth is 1.00 cm in front of the mirror, and the image is formed 10.0 cm behind the mirror. Determine (a) the mirrors radius of curvature and (b) the magnification of the image.
A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.50 mm. With the length of the barrel set at 29.0 cm, the diameter of a red blood cells image subtends an angle of 1.43 mrad with the eye. It the final image distance is 29.0 cm from the eyepiece, what is the actual diameter of the red blood cell? Hint: To solve this question, go back to basics and use the thin-lens equation.
A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.50 mm. With the length of the barrel set at 29.0 cm, the diameter of a red blood cells image subtends an angle of 1.43 mrad with the eye. It the final image distance is 29.0 cm from the eyepiece, what is the actual diameter of the red blood cell? Hint: To solve this question, go back to basics and use the thin-lens equation.
For a normal, relaxed eye, a magnifying glass produces an angular magnification of 4.0. What is the largest magnification possible with this magnifying glass?