The distance between an object and its upright image is d. If the magnification is M, what is the focal length of the lens being used to form the image?

Q: a convex mirror has a focal length of -7.4 cm. If an object is placed 20 cm from the surface, at…

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Q: If a 6.7 cm doll is standing a distance from a convex mirror and the focal length is 4 m, find the…

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Q: Magnifying power of a simple microscope is inversely proportional to the focal length of the lens.…

A: Grinding lenses of very small focal lengths is not very easy.

Q: What is the height of an image in a concave mirror

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Q: Question 6 The absolute magnitude of the focal length of a concave mirror is 10 cm. If an object is…

A: Part (6): Given: The focal length of the concave mirror is 10 cm. The distance of the object from…

Q: An object that is 2.50 m tall is placed 8.60 m from a large mirror.  If an image is formed at a…

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Q: An object placed 30 cm in front of a converging lens forms an image 15 cm behind the lens. What is…

A: Given data: object distance p = 30 cm    image distance q = 15 cm

Q: The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the…

A: The mirror equation,

Q: If a virtual image is formed 10.0 cm along the principal axis from a convex mirror of focal length…

A: The expression from lens formula,

Q: The diagram shows an object OA and its real image IB formed by a lens. The name of the lens used to…

A: In the diagram the image is real and inverted. As we know that the inverted image formed by convex…

Q: f the lateral magnification of an object is 1.4 and the focal length of the converging lens is 12.1…

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Q: The Lensmaker’s Equation The focal length f of a lenswith index of refraction n is  1/f = ( n - 1)[…

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Q: An object is placed 38 cm in front of a spherical mirror. The image lies 5.0 cm in front of the…

A: given data:   Object distance (u) of spherical mirror = - 38 cm Image distance (v) in front of the…

Q: When an object 1.15 cm tall is placed 12 cm from a lens, the lens produces an upright image of the…

A: GivenHeight of the object ho=1.15 cmDistance of the object u=12 cmHeight of the image hi=5.75…

Q: A concave mirror has a radius of 2 m. An object with a height of 0.2 m is placed 0.3 m from the…

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Q: If a real image is formed along the principal axis 20 cm from a concave mirror with the focal length…

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Q: An object is placed 50 cm in front of a concave mirror of 60 cm radius. Determine the (a) focal…

A: a. here the focal length of the mirror is

Q: An observer to the right of a mirror - lens combination sees 2 reflections of an object. One…

A: The observer is to the right of the mirror. The reflections are magnified 1.5 times i.e. m = 1.5 The…

Q: An object that is 25 cm in front of a convex mirror has an image located 17 cm behind the mirror.…

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Q: A concave mirror forms a real image at 35.2 cm from the mirror surface along the principal axis. If…

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Q: When an object is placed 25.0 cm in front of a convex spherical mirror, a virtual image forms 13.5…

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Q: A 2.2 m tall object is placed 10.5 m from a truck mirror. If an image is formed -9.75 m from the…

A: The magnification is given by  where, u is the distance of object and v is the distance of image.

Q: The focal length of a concave spherical mirror is equal to 1 meter. What is the radius of curvature…

A: Focal Length = Radius of curvature / 2 Radius of curvature = Focal length x 2…

Q: The lens formula relating the image distance, p, to the focal length, f, and object distance, s, is…

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Q: if the index of refraction of glass is 1.502, what is the speed of light in glass?

A: Given information: Here, nglass and nair the refractive index of the glass and air (standard value)…

Q: An object is placed 54.5 cm in front of a convex mirror. If the focal length of the mirror is -11.0…

A: Mirror formula  (1/f) = (1/v) + (1/u)  V = image distance u = object distance f = focal length

Q: An object is located at a distance of 20 cm in front of a convex mirror of 20 cm focal length. The…

A: Given data The object distance is u=-20 cm The focal length is f=20 cm distance in front of the…

Q: How far should an object be from a concave spherical mirror of radius 60 cm to form a real image…

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Q: An object 7 cm high is placed 15 cm from a convex spherical mirror of radius 45 cm. Determine the…

A: Here is the ray diagram for this incidence   f=R/2=22.5 cm

Q: If the lateral magnification of an object is 1.5 and the focal length of the converging lens is 12…

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Q: A powerful magnifying glass produces a real image 4 mm from the convex lens. If the object was…

A: The Lens formula is given by  1f=1v-1u v is the image distance of an image, u is the object…

Q: The image of an object is found to be upright and reduced in size. What type of mirror and/or lens…

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Q: If the object to lens distance is 9 cm and lens to image distance is 29 cm, what is the focal length…

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Q: A concave mirror produces a virtual image that is 4 times as tall as the object. If the object is 44…

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Q: An object is held at a distance of 12 cm from a convex mirror creating an image that is 1/3 the…

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Q: A concave mirror has an object placed 20 cm in front of it. An image is formed 35 cm in front of the…

A: u = object position = - 20 by convention distance to the left of the mirror, object distance in this…

Q: AN ARROW OF HEIGHT 40 CM IS LOCATED AT A FOCAL DISTANCE OF 90 CM FROM A CONVEX MIRROR. IF WE…

A: object height = y = 40 cm focal length = f = -90 cm (-ve is convex mirror) object distance = s = 180…

Q: A 1.6-m-tall girl stands 3.2 m from a convex mirror. What is the focal length of the mirror if her…

A: We know that, Magnification (m) = Height of image Height of object= -vu   ..............(1) Given,…

Q: A concave mirror produces a virtual image that is 7 times as tall as the object. If the object is 36…

A: Data Given ,  Magnification ( m ) = 7  Object distance from mirror ( u ) = 36 cm .  = 0.36 m Image…

Q: An object has its image formed 20 cm from a convex mirror. The height of the object is two times…

A: The mirror formula is  1f=1v+1u where, u is the distance of object, v is the distance of image.  The…

Q: A concave mirror has a radius of curvature of 68.4 inches. How far (in inches) from the mirror is…

A: Radius of curvature of concave mirror is R = 68.4 inches .

Q: An object is placed 25 cm from a convex lens whose focal length is 10 cm. The image distance is…

A: Given : Object Distance ( o ) = 25cm Focal length (f) = 10 cm To calculate, image distance (v)

Q: An object is positioned at the focal point of a converging lens (focal length f). How far from the…

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Q: An object is placed 20 cm away from a convex lens. If an image is formed 50 cm from the lens, what…

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