You want to view through a magnifier an insect that is 2.00 mm long. If the insect is to be at the focal point of the magnifier, what focal length will give the image of the insect an angular size of 0.032 radian?

Q: An object 1.1 cm high is viewed under a magnifier of focal length 9.0 cm by a person with a near…

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Q: A concave spherical mirror forms a real image on the principal axis 18 cm from the mirror.  If the…

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Q: A 1.5-cm-tall object is 18 cm in front of a convex mirror that has a -59 cm focal length. Part A…

A: Given: The focal length of the convex mirror is -59 cm. The length of the object is 1.5 cm. The…

Q: An image is formed 40 cm away from its object. Its magnification is M = +3. What is the focal length…

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Q: A glass lens (n=1.60) has a focal length of f=−31.7 cm and a plano‑concave shape. Calculate the…

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Q: ray diagram concave or convex of: focal length f = 3 cm,  radius of curvature = 6 cm. 1.The object…

A: Given values:- The radius of curvature,(R)=6 cm ----(1) Object distance,(U)=-7 cm ----(2) Focal…

Q: A concave mirror with a radius of curvature of 1.0 m is illuminated by a candle located on the…

A: Given:     Object distance u= 3m      Radius of curvature(R) = 1m

Q: a nearsighted person has a far point of 33 cm. what focal length of a contact lens would allow the…

A: far point of a near sighted person, V=-33 cmto see objects clearly at a distance, U=-∞1F=1V-1U…

Q: In the figure below you see how an image (right-hand side) is produced of an object (upright pencil…

A: From the given diagram, the lens is at the 100 cm mark and the object is at the 20 cm mark, thus the…

Q: How can you estimate the focal length of a convex lens?

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Q: A stamp collector wants to magnify an image by 4.0 when the stamp is 3.5 cm from the lens. What…

A: Given Information:- Magnification of the image is m=4.0 Distance of the stamp from the lens is…

Q: A near-sighted person has a far-point of 7.45 m. To correct their vision, what should be the focal…

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Q: A mirror of focal length -0.5 has an object in front of it at 1-meter distance. Where will the image…

A: Given that focal length of the mirror and object distance from the mirror. Then We have to determine…

Q: You place an object a distance of 55 cm in front of a diverging lens with a focal length of…

A: Given data The distance of the object from the lens is u=55 cm The focal length of the lens is f=20…

Q: A shopper standing 2.40 m from a convex security mirror sees his image with a magnification of…

A: a) Write the expression for the magnification and substitute the required values to determine the…

Q: An object is 25 cm in front of a converging lens with a focal length of 25 cm. Where will the…

A: According to the lens equation, find the image distance. 1f=1u+1v1v=1f-1u=125-125

Q: Consider an object placed near a thin lens. The ray shown is one of the principal rays for the lens.…

A: Given that A object placed near a thin lense From given diagram Each squire =1 cm along the…

Q: The distance from the front to the back of your eye is approximately 1.90 cm. If you can see a clear…

A: Given, Object distance, u=-42.4 cm  Image distance, v=1.9 cm

Q: For the next two numbers, consider an ant that is 15 cm from a convex lens whose focal length is 10…

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Q: An object 3cm high is placed 20cm from a convex mirror with a focal lenght 8cm.Find 1. The position…

A: (1) The focal length of a convex mirror is negative

Q: 27. What is the focal length (in cm) of the concave mirror? А. 2 сm В. 5 ст C. 8 cm D. 10 cm E. 12…

A: (27) Express the relation between focal length and radius of curvature of a mirror. f=R2 Here, f is…

Q: If My'Kayla stands exactly one focal length away from a concave mirror, what will her image look…

A: Reflection is the phenomenon of bouncing off from the mirror for the light rays.

Q: A converging lens of focal length 12.0 cm forms an image of each of two objects placed (a) 20.0 cm…

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Q: Find the focal length of a thin lens (n = 1.52) if the radii of curvature are +15.0 cm and -30.0

A: Given: The refractive index is 1.52. The radius of the curvature is +15 cm and -30 cm.

Q: A lens has a power of 4 D. What is the focal length of the lens? A) 0.25 m B) 0.50 m C) 2 m D) 4 m

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Q: An image is formed 40 cm away from its object. Its magnification is M = +3. What is the focal length…

A: Given Distance of the image is v=40 cm Magnification is given as M=+3   Formula to be used From…

Q: An object is placed at a distance 3|f in front of a convex mirror of focal length If = 20 cm.…

A: Information given Focal length of the convex mirror is f Object is placed at a distance 3f   We have…

Q: A near sighted person has a far-point of 3.68 m. to correct their vision, what should the focal…

A: Far point, D = 3.68 m Lens distance, d = 2 cm  Focal length, f = ?

Q: You position your eyes 10.0 cm in front of a magnifying glass with a focal length of 4.0 cm. How far…

A: Given  Image distance di=-10cm focal length f=4cm object distance do

Q: You hold a magnifying glass 4.0 cm above  1.98 mm-long bug and the image is 5.44 mm long. What is…

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Q: The lens in the figure below is made of glass of index 1.50 and have surfaces with radii of…

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Q: An object is placed at a distance of 100 cm from a convex miror of focal length 15.0 cm. Which of…

A: Given :             u= - 10 cm             f=  15 cm            v= ? From the mirror formula…

Q: Using a single optic with a positive focal length, an image is created. As a result, which of the…

A: Given: focal length of a optic is positive

Q: An object is 30.0 cm from a spherical mirror, along the mirror’s central axis.The mirror produces an…

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Q: Can you help me with this one? A convex mirror is needed to produce an image three-fourths the size…

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Q: A covex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the…

A: Mirrors are based on the laws of reflection. The focal length of a mirror is half its radius of…

Q: Suppose you have a concave lens of focal lengthf 30.0 cm. An object of height 5.5 cm is placed 35.0…

A: Given Focal length of lens f = -30 cm Object distance u = -35 cm Size of object h1 = 5.5 cm

Q: A photographer places a 1.75 cm high pearl 3.50 cm in front of a concave mirror. This results in a…

A: Dear student The relation between object distance, image distance and focal length of a mirroe is…

Q: An object of height 30 mm is placed at the distance u = 10 cm from the eyepiece of a microscope with…

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Q: An object 1.1 cm high is viewed under a magnifier of focal length 14 cm by a person with a near…

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Q: A concave mirror has a radius of 34.0 cm. (a) What is its focal length? (b) A ladybug 7.50 mm tall…

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Q: Formula is used to find the focal length of the mirror is vụ v+u A) f =- V - u В) f C) f = vụ D) f =…

A: The distance of the image is v and the distance of the object is u.

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.