11:00Mirror equation example problems | Geometric optics | Physics | Khan AcademyKhan Academy427views
Multiple ChoiceA 4 cm tall object is placed in 15 cm front of a concave mirror with a focal length of 5 cm. Where is the image produced? Is this image real or virtual? Is it upright or inverted? What is the height of the image?942views4comments
Multiple ChoiceYou want to produce a mirror that can produce an upright image that would be twice as tall as the object when placed 5 cm in front of it. What shape should this mirror be? What radius of curvature should the mirror have?542views2rank4comments
Multiple ChoiceAn object is 20cm in front of a converging lens with a focal length of 30cm. Use ray tracing to determine the location of the image. Is the image upright or inverted?227views
Multiple ChoiceA 4 cm tall object is placed 15 cm in front of a concave mirror with a focal length of 5 cm. Where is the image produced? Is this image real or virtual? Is it upright or inverted? What is the height of the image?198views3rank
Multiple ChoiceYou want to produce a mirror that can produce an upright image that would be twice as tall as the object when placed 5 cm in front of it. What shape should this mirror be? What radius of curvature should the mirror have?212views7rank1comments
Textbook QuestionA concave mirror has a radius of curvature of 34.0 cm. (b) If the mirror is immersed in water (refractive index 1.33), what is its focal length?319views
Textbook QuestionThe thin glass shell shown in Fig. E34.15 has a spherical shape with a radius of curvature of 12.0 cm, and both of its surfaces can act as mirrors. A seed 3.30 mm high is placed 15.0 cm from the center of the mirror along the optic axis, as shown in the figure. (a) Calculate the location and height of the of this seed.347views
Textbook QuestionDental Mirror. A dentist uses a curved mirror to view teeth on the upper side of the mouth. Suppose she wants an erect with a magnification of 2.00 when the mirror is 1.25 cm from a tooth. (Treat this problem as though the object and lie along a straight line.) (b) What must be the focal length and radius of curvature of this mirror?359views
Textbook QuestionA spherical, concave shaving mirror has a radius of curvature of 32.0 cm. (b) Where is the ? Is the real or virtual?312views
Textbook QuestionYou hold a spherical salad bowl 60 cm in front of your face with the bottom of the bowl facing you. The bowl is made of polished metal with a 35-cm radius of curvature. (a) Where is the of your 5.0-cm-tall nose located?320views
Textbook QuestionAn object is 18.0 cm from the center of a spherical silvered-glass Christmas tree ornament 6.00 cm in diameter. What are the position and magnification of its ?357views
Textbook QuestionAn object 0.600 cm tall is placed 16.5 cm to the left of the vertex of a concave spherical mirror having a radius of curvature of 22.0 cm. (b) Determine the position, size, orientation, and nature (real or virtual) of the424views
Textbook Question(I) How far from a concave mirror (radius 30.0 cm) must an object be placed if its image is to be at infinity?33views
Textbook Question(II) The lateral magnification of a convex mirror is +0.75 for objects 3.2 m from the mirror. What is the focal length of this mirror?30views
Textbook Question(II) A dentist wants a small mirror that, when 2.00 cm from a tooth, will produce a 3.0 x upright image. What kind of mirror must be used and what must its radius of curvature be?34views
Textbook Question(II) The image of a distant tree is virtual, very small, and 13.0 cm behind a curved mirror. What kind of mirror is it, and what is its radius of curvature?39views
Textbook Question(II) A 4.2-cm-tall object is placed 26 cm in front of a spherical mirror. It is desired to produce a virtual image that is upright and 3.2 cm tall.(a) What type of mirror should be used?(b) Where is the image located?(c) What is the focal length of the mirror?(d) What is the radius of curvature of the mirror?37views
Textbook Question(II) (a) Where should an object be placed in front of a concave mirror so that it produces an image at the same location as the object? (b) Is the image real or virtual? (c) Is the image inverted or upright? (d) What is the lateral magnification of the image?30views