physics

posted by .

A trucker sees the image of a
car passing her truck in her diverging rear-view mirror, whose focal
length is 60.0 cm. If the car is 1.85 high and 6.75 away, what is the
location and height of the image.

1/p + 1/q = 1/f
1/675cm + 1/q = 1/(-60cm)
q=-55.1 cm

M=h'/h M=-q/p
M=-(-55.1cm)/675cm =.0816
h'=(.0816)(185cm)=15.1cm

A microscope contains two converging lenses each having a local length
of 4mm. The objective lens and the eyepiece are separated by 87mm. If a
piece of sand is placed 4.20mm from the objective lens, how far is the
final image from the eyepiece. What is the total magnification of the
system?

1/4.20mm + 1/q = 1/4mm
q=84 mm
M=-q/p = -84mm/ 4.20mm =-20mm

  • physics -

    I agree with your first answer.

    In the second question, you need to determine how far the viewed sand image appears occurs in front of the eyepiece. Magnifications are dimensionless

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    1)A 5.0 cm real object is placed at a distance of 30.0 cm from a concave mirror of focal length 10.0 cm. Find the location of the image. (30)(10)/5.0 15 or (30)(5.0)/10 60 I don't know which one 2)What must be the minimum height of …
  2. physics

    the focal length of this mirror is 6 cm and the object is located 8 cm away from the mirror. calculate the position of the image formed by the mirror. suppose the converging mirror is replaced by a diverging mirror with the same radius …
  3. Physics

    An object is placed 30mm in front of a lens. An image of the object is located 90mm behind the lens. a) Is the lens converging or diverging?
  4. Physics

    The outside mirror on the passenger side of a car is convex and has a focal length of -7.2 cm. Relative to this mirror, a truck traveling in the rear has an object distance of 20 m. Find (a) the image distance and (b) the magnification …
  5. marymount academy

    1.An object 2.5cm high is placed 10cm from a converging lens. if the local length of the lens is 5cm, a. How far from the lens will the image be formed?
  6. physics

    A 0.49 cm high object is placed 8.5 cm in front of a diverging lens whose focal length is -7.5 cm. What is the height of the image?
  7. science gr.8

    classify each as plane mirror, convex, or concave and briefly explain how the mirror is used to see images. 1) full length bedroom mirror 2) make-up mirror (compact makeup mirror) 3) car rear view mirror 4) dental mirror (used to look …
  8. physics

    he rear window in a car is approximately a rectangle, 1.28 m wide and 0.160 m high. The inside rear-view mirror is 0.590 m from the driver's eyes, and 1.59 m from the rear window. What is the minimum height of the rear-view mirror …
  9. Physics

    The rear window in a car is approximately a rectangle, 1.31 m wide and 0.390 m high. The inside rear-view mirror is 0.440 m from the driver's eyes, and 1.42 m from the rear window. What is the minimum height of the rear-view mirror …
  10. Physics

    A car is behind a truck going 18 m/s on the highway. The car's driver looks for an opportunity to pass, guessing that his car can accelerate at 0.6 m/s2 and that he has to cover the 20-m length of the truck, plus 10-m extra space at …

More Similar Questions