What is the focal length of a makeup mirror that produces a magnification of 1.50 when the face is 12.0 cm away? The face of someone applying makeup is 2.2 times the focal length away from her mirror. What is the magnification now?

Q: A person has a near point of 40 cm and a far point of 2.0 m. When looking through lenses of focal…

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Q: A double-convex thin lens is made of glass with an index of refraction of 1.56. The radii of…

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Q: A lens has a power +2.0 D. The type of lens and its focal length will be: A) Concave, -0.5 m B)…

A: The power of a lens is defined as the ability of the lens to bend the incident light from its…

Q: An object is 47.5 cm tall. The image is 38.6 cm tall, and 14.8 cm from the mirror. How far is the…

A: Given that, The height of the object hob=47.5 cm The height of the image him=38.6 cmThe image…

Q: An object is placed at a distance of 10.0 cm from a concave mirror of focal length 5.00 cm. Which…

A: Object is at center of curvature. Hence an inverted image will be formed at center of curvature.

Q: A solar cooker, really a concave mirror pointed at the Sun, focuses the Sun's rays 12.8cm in front…

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Q: An object is located 35 cm away from a converging lens. The lens forms a real, inverted image at a…

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Q: An object of height 12.9 cm is placed 37.2 cm from a convex lens. What is the angular size of this…

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Q: The distance between an object and its upright image is 12.0 cm. If the magnification is 0.400, what…

A: The expression for the magnification of lens (upright image),

Q: For a thin lens situation, you have determined that s = 2.0 cm and s' = 6.0 cm. What of the…

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Q: Images formed by thin lenses. A contact lens is made of plastic with an index of refraction of 1.50.…

A: According to lensmaker’s equation, Here, f, n, R1 and R2 represent the focal length of the lens,…

Q: An object placed in front of a positive (converging) lens results in an image formed 17.0 cm on the…

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Q: A 5.00-cm tall light bulb is placed 55.5 cm from a concave mirror having a focal length of 15.2 cm.…

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Q: Q1: A pathologist holds a (5 cm) focal length magnifying glass (3 cm) from a tissue sample. How much…

A: Given  Focal length of lense  f=6 cm Object distance  u=-3cm From lense formula  (1/f)=(1/v)-(1/u)…

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

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Q: The radius of curvature of a spherical convex mirror is 30 cm. What is its focal length? -30cm —15…

A: Given: Radius of curvature R = 30 cm  To find: Focal length f

Q: An object placed 20 cm to the left of a 10 cm focal length positive lens a. will create a virtual…

A: Given data, Distance of the object (u) = 20 cm Focal length (f) = 10 cm

Q: what is the focal foc

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Q: farsighted senior citizen needs glasses with a focal length of 45 cm. What is the power of the…

A: Given Focal length of lens, =  F = 45 cm  F = 0.45 m  Power of the lens is ,P =???

Q: In the figure shown below: What is the focal length of the lens which forms a real image of the…

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Q: A contact lens is made of plastic with an index of refraction of 1.35. The lens has an outer radius…

A: Given Formula to be used to find the focal length of the lens is

Q: An object is placed 48 cm in front of a thin lens. If an image forms at a distance of 12 cm from the…

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Q: Ellen places an object 40.0 cm from a concave lens. If a virtual image appears 10.0 cm from the lens…

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Q: Problem 3: A combination of two identical lenses shown in the figure below. A 2.0-cm-tall object is…

A: a) Apply the lens equation and substitute the required values to determine the position of the image…

Q: An object located 35.2 cm in front of a convex spherical mirror produces a virtual image at a…

A: Given that                 The location of the object is (u) = - 35.2cm                 The virtual…

Q: The rear window in a car is approximately a rectangle, 2.3 m wide and 0.60 m high. The inside…

A: Given  The width of the rear window is ww = 2.3 m. The height of the rear window is hw = 0.60  m.…

Q: An object located 10.3 cm in front of a convex spherical mirror produces a virtual image at a…

A: Given data: Object distance u = 10.3 cm Image distance v = 1.3 cm

Q: A convex (converging) lens has a focal length of 13.0 cm. Where on the lens axis should an object be…

A: It is given that, the image produced by a convex lens is virtual and enlarged. Let us say that the…

Q: You are 2.46 meters tall with your eyes about 1.86 meters from the ground. You stand 2.20 meters…

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Q: X-? 30 cm 1.5 m

A: Given, For the first lens  The object distance is u1=30cm The image distance is v1. Focal distance…

Q: A doctor wishes to inspect a patient's tooth with a magnifying mirror. She places the mirror 1.00 cm…

A: The mirror equation is given as  1f=1v+1uhere v is image distance u is object distanceUsing sign…

Q: . What is the largest magnification possible with this magnifying glass?

A: Answer  for largest possible magnification is  5.0. Explanation is in next step .

Q: A spider hangs by a strand of silk at an eye level 34 cm in front of a plane mirror. The distance…

A: Here we use that If distance between mirror and object is u. Then the distance between image of…

Q: An object of height 15.9 cm is placed 29.3 cm from a convex lens. What is the angular size of this…

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Q: Consider a makeup mirror that produces a magnification of 1.45 when a person’s face is 12.5 cm away.…

A: Find the distance of the image from magnification equation.

Q: What is the focal length of the mirror?

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Q: Part (a)  What is the magnification?  Part (b)  What is the image distance in cm?  Part (c)  Find…

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Q: A convex mirror of focal length f = -10 cm has an object placed 5 cm from it. Draw a ray diagram of…

A: Given: Focal length , f = 10 cm  Object distance , u = -5 cm  To Find: (1) ray diagram and position…