Question

In: Physics

A doctor examines a mole with a 16.5 cm focal length magnifying glass held 14.0 cm...

A doctor examines a mole with a 16.5 cm focal length magnifying glass held 14.0 cm from the mole.

(a) Where is the image? (Enter the image distance in meters. Include the sign of the value in your answer.) m

(b) What is its magnification?

(c) How big in millimeters is the image of a 4.60 mm diameter mole? mm

Solutions

Expert Solution

In the given problem As magnifying lens Convex lens is used usally.

a)Distance of Image can be find using below formula

b)Magnification can be find by the following formula

positive Image is Upright

neagtive Image is inverted

c)Size of image of mole can be find using below formula


Related Solutions

A doctor examines a mole with a 16.5 cm focal length magnifying glass held 12.0 cm...
A doctor examines a mole with a 16.5 cm focal length magnifying glass held 12.0 cm from the mole. a) Where is the image? (Enter the image distance in meters. Include the sign of the value in your answer.) b) What is its magnification? c) How big in millimeters is the image of a 5.05 mm diameter mole? d) What is the focal length (in cm) of a magnifying glass that produces a magnification of 3.65 when held 4.50 cm...
A magnifying glass uses a converging lens with a focal length of 15.5 cm. It produces...
A magnifying glass uses a converging lens with a focal length of 15.5 cm. It produces a virtual and upright image that is 2.9 times larger than the object. A) How far is the object from the lens? B) What is the image distance?
A magnifying glass is a single convex lens with a focal length of f = +9.50...
A magnifying glass is a single convex lens with a focal length of f = +9.50 cm. (Assume the person using the magnifying glass has a near point of 25 cm and the magnifying glass is directly in front of the person's eyes.) (a) What is the angular magnification when this lens forms a (virtual) image at ??? How far from the object should the lens be held? (b) What is the angular magnification when this lens forms a (virtual)...
Two 22.0 −cm−cm -focal-length converging lenses are placed 14.0 cmcm apart. An object is placed 32.0...
Two 22.0 −cm−cm -focal-length converging lenses are placed 14.0 cmcm apart. An object is placed 32.0 cm in front of one lens. Where will the final image formed by the second lens be located? di2 =    cm beyond the second lens What is the total magnification? m =    ×
A two lens magnifying system uses lenses of focal lengths 2.5 and 9.5 cm for the...
A two lens magnifying system uses lenses of focal lengths 2.5 and 9.5 cm for the objective and eyepiece, respectively. The two lenses are positioned 23 cm apart. An object for study is placed 3.0 cm in front of the objective lens. Find the magnification of the final image.
​A concave cosmetic mirror has a focal length of 24 cm . A 3.0-cm-long mascara brush is held upright 12 cm from the mirror.
A concave cosmetic mirror has a focal length of 24 cm . A 3.0-cm-long mascara brush is held upright 12 cm from the mirror.Part AUse ray tracing to determine the location of its image.Part BWhat is the height of the image? Use ray tracing to determine.
The tube length in a certain compound microscope is 25 cm. The focal length of the...
The tube length in a certain compound microscope is 25 cm. The focal length of the objective lens is 2.1 cm. The clearest image is formed when an object of height 1 mm is placed at a distance of 2.3 cm from the objective lens. Determine: (i) The position of the intermediate image, (ii) the focal length of the eye piece, that will place the final image at the near-point, (iii) the total magnification of the microscope and the height...
An object is 15.2 cm to the left of a lens with a focal length of...
An object is 15.2 cm to the left of a lens with a focal length of 10.2 cm. A second lens of focal length 11.8 cm is 39.27 cm to the right of the first lens. The height of the object of is 2.1 cm. What is the location of the final image with respect to the second lens? What is the height of the image?
A converging lens of focal length 19.3 cm is separated by 49.3 cm from a converging...
A converging lens of focal length 19.3 cm is separated by 49.3 cm from a converging lens of the focal length 4.53 cm. Find the position of the final image with respect to the second lens of an object placed 38.6 cm in front the first lens. Answer in units of cm. 021 (part 2 of 3) 10.0 points If the height of the object is 1.7 cm, what is the height of the final image? Answer in units of...
A lens of focal length f1 = +20 cm has an object positioned 50 cm in...
A lens of focal length f1 = +20 cm has an object positioned 50 cm in front of it. A second lens of focal length f2= -15 cm is located 10 cm behind the first lens. a) Determine the two image positions for this combination of lenses. b) Is each image real or virtual, upright or inverted, and magnified or demagnified?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT