A forensic scientist examines a hair with a microscope that has a 15x objective and a 5x eyepiece. The magnified hair has the same apparent size as a 2.0-cm-wide ribbon seen from a distance of 1.0 m. What is the diameter of the hair? Express your answer with the appropriate units. d= 0.27 HA mm ?
Q: ange their index of refraction in response to an applied voltage. Suppose a planoconvex lens (flat…
A:
Q: A farsighted student wears contact lenses with a prescription of +2.50 Diopters. This allows her…
A: Step 1:Contact lens power is +2.50 Diopters.Exam distance from the contact lens is 25cmEyes…
Q: The eye can be treated as a spherical optical surface filled with a fluid with an index of…
A:
Q: A submarine is 285 m horizontally from the shore of a freshwater lake and 111 m beneath the surface…
A:
Q: A certain slide projector has a 150 mm focal length lens. (a)How far away is the screen (in m), if…
A: Solution: Given, focal lengthf = 150 mm = 0.115 mdistance of object = u = 158mm = 0158m
Q: The front door of many houses has a small “peephole” lens that gives a wide-angle view of the…
A: According to the thin lens formula, 1f = 1v - 1u Sign conventions: All distances measured opposite…
Q: is measured to be 31 cm. The actual focal length of this lens is 28 cm. What is the percent error of…
A:
Q: The human eye has a lot in common with a pinhole camera, being essentially a small box with a hole…
A:
Q: The human eye has a lot in common with a pinhole camera, being essentially a small box with a hole…
A: The image distance is The height of the object is The object distance is Find:The height of image.
Q: and an inner radius of curvature of +2.52 cm. What is the focal length of the lens? Your response is…
A:
Q: A doctor examines a mole with a 16.0 cm focal length magnifying glass held 11.5 cm from the mole.…
A:
Q: When viewed through a magnifying glass, a stamp that is 1.1 cm wide appears upright and 8.0 cm wide.…
A:
Q: A watchman is searching the bottom of a pool at night. He shines a narrow beam from a flashlight at…
A: Consider the following diagram,
Q: A forensic scientist examines a hair from a crime scene using a microscope with a 15x objective and…
A: Given , Magnification of objective lens is Mo= 15 Magnification of eye piece is me = 5 Length L =…
Q: A microscope with an overall magnification of 795 has an objective that magnifies by 220. (a) What…
A:
Q: A magnifying glass has a converging lens of focal length 18.9 cm. At what distance from a nickel…
A: Given,
Q: In this problem, we will design a microscope using two convex lenses. The objective lens has a focal…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal…
A: The focal length of the objective lens is fo= 16.22 mm.The focal length of the eyepiece is fe= 9.64…
Q: A doctor examines a mole with a 17.1 cm focal length magnifying glass held 11.7 cm from the mole.…
A: The distance between the image and the lens:1di=1f-1do------(1)where, f=17.1 cmdo=11.7 cm Putting in…
Q: Logan observes a paramecium under a microscope. The eyepiece of the microscope has a horizontal…
A:
Q: An object is in front of a converging lens (f= 60 cm). The absolute value of the magnification of…
A:
Q: Spherical mirrors. Object O stands on the central axis of a spherical mirror. For this situation…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-partsfor…
Q: A camera lens used for taking close-up photographs has a focal length of 28.4 mm. The farthest it…
A: Given: f=28.4 mm v=24 mm
Q: camera with a 70 mm lens takes a photograph of a 2.10 m-tall object located 46 m away. Calculate the…
A:
Q: The near point of a person's eye is 60.0 cm. What is the approximate power of the correcting lens…
A:
Q: Problem 5: A student is getting her picture taken by a digital camera. The student is ho = 1.65 m…
A:
Q: Question 2.9: The photograph of a house occupies an area of 1.75 cm²on a 35 mm slide. The slide is…
A: Given data, Area of house on the slide, =1.75 cm2=1.75×10-4 m Area of image, =1.55 m2
Q: An image of the moon produced by a converging lens is focused onto a screen; the focal length is f.…
A:
Q: A camera with a 110 mm lens takes a photograph of a 1.10 m-tall object located 41 m away. Calculate…
A: Given, Focal length of camera (f) = 110mm Height of object(ho) = 1.10m Distance of object from…
Q: The photograph of a house occupies an area of 1.75cm on a slide. The slide is projected on to a…
A: Given data-Area of image=1.55 m2Area of object=1.75 cm2=1.75×104 m2Linear magnification=?
Q: (a) How does a compound microscope produce the magnified image of small object? (b) Sketch a typical…
A: Concept: A microscope is a device that allows you to examine small objects, including cells. The…
Q: A camera lens used for taking close-up photographs has a focal length of 24.5 mm. The farthest it…
A:
Q: how do you do question 9? this is a non graded practice worksheet
A:
Q: A certain slide projector has a 135 mm focal length lens. (a) How far away is the screen (in m), if…
A: Given Focal length f=135 mm object distance u=139mm Dimension of slide18 by 45 mm
Q: A telescope has an angular magnification of -30 ×× and a barrel 1.05 mm long. What is the focal…
A: Given data: Angular magnification (m) = -30.Length of the barrel (L) = 1.05 mm = 1.05×10-3 m. To…
Q: The power of the lenses of a certain physician’s eyes is 59 D. Assume the distance between a retina…
A: Given, P=59 D di=2.00 cm
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- 3. Figure 2.2 is a photograph of an eyeball with the image of a boy in a doorway. Is the eye here acting as a lens or as a mirror? Explain. 6. A stamp collector uses a converging lens with focal length 28 cm to view a stamp 16 cm in front of the lens. (a)Where is the image located? (b) What is the magnification? Figure 2.1 Problem 2 Figure 2.2 Problem 3A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.06 mm. With the length of the barrel set at 33.0 cm, the diameter of a red blood cell's image subtends an angle of 1.43 mrad with the eye. If the final image distance is 33.0 cm from the eyepiece, what is the actual diameter of the red blood cell? Hint: To solve this equation, go back to basics and use the thin-lens equation. ?mIf, when using 10X ocular and a 50X objective, the field size is 2.4 mm. The approximate field size with a 25X objective is ________ mm. 9.6 0.4 4.8 1.2
- A microscopic specimen has an actual size of 329.43 um(diameter), when the image is printed and measured using a ruler, its dianeter has a size of 34 cm. What is the actual magnification?An individual is nearsighted; his near point is 11.0 cm and his far point is 51.0 cm. (a) What lens power is needed to correct his nearsightedness? 1.96 X The response you submitted has the wrong sign. diopters (b) When the lenses are in use, what is this person's near point? 11 X Your response differs from the correct answer by more than 10%. Double check your calculations. cmA student measures the thickness of a human hair by looking at it through amicroscope of magnification 100. He makes 20 observations and finds that the average width of the hair in the field of view of the microscope is 3.5 mm. What is the estimate on the thickness of hair?
- A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.28 mm. With the length of the barrel set at 35.0 cm, the diameter of a red blood cell's image subtends an angle of 1.43 mrad with the eye. If the final image distance is 35.0 cm from the eyepiece, what is the actual diameter of the red blood cell? Hint: To solve this equation, go back to basics and use the thin-lens equation. umA forensic scientist is using a microscope with a 15× objective and a 5× eyepiece to examine a hair from a crime scene. How far from the objective is the hair? Assume a length L = 160 mm.In a compound microscope, the objective has a focal length of 1.0 cm, the eyepiece has a focal length of 2.0 cm, and the tube length is 25 cm. What is the magnitude of the overall magnification of the microscope?
- Problem 12: A student wears eyeglasses of power P = -3.75 diopter to correct nearsightedness. The glasses are designed to be worn d = 1.3 cm in front of the eye. Part (a) Input an expression for the far point the student can see without correction, do. Part (b) Numerically, what is the distance in meters?A forensic scientist examines a hair from a crime scene using a microscope with a 15x objective and a 5x eyepiece. How far is the hair from the goal? Assume L = 160 mm in length.A far-sighted patient has contacts' prescription for +3.00 D, and this prescription gives her a perfect vision. What is her near point?