A light from a projector passes through a two-lens system, where it first passes through a concave lens that has an unknown focal length and then through a convex lens of focal length 20 cm after which the light hits a screen. Given that the distance between the light source and the concave lens is 8 cm, the distance between the convex and concave lens is 60 cm, and the distance between the convex lens and the screen is 26 cm, find the focal length of the concave lens

A light from a projector passes through a two-lens system, where it first passes through a concave lens that has an unknown focal length and then through a convex lens of focal length 20 cm after which the light hits a screen. Given that the distance between the light source and the concave lens is 8 cm, the distance between the convex and concave lens is 60 cm, and the distance between the convex lens and the screen is 26 cm, find the focal length of the concave lens

Similar questions

The objective lens of a microscope is a planoconvex (flat on one side) lens that has a short focal length of 7.6 mm. The focusing knob on the microscope moves the object toward or away from the objective lens. The microscope is designed so that the object will be seen in focus through the eyepiece when the objective lens forms a real image of the object 160 mm behind the objective lens. (a) At what object distance in mm is the microscope focused? (b) What is the lateral magnification of the objective lens?(c) Account for the resulting image shown in the figure, i.e. using your calculations, justify that indeed the image is real, magnified, and inverted.
A converging lens is placed 36.0 cm to the right of a diverging lens of focal length 7.0 cm. A beam of parallel light enters the diverging lens from the left, and the beam is again parallel when it emerges from the converging lens. Calculate the focal length of the converging lens. f = _____ cm
A plane mirror and a concave mirror (f = 7.70 cm) are facing each other and are separated by a distance of 21.0 cm. An object is placed between the mirrors and is 10.5 cm from each mirror. Consider the light from the object that reflects first from the plane mirror and then from the concave mirror. Find the location of the image that this light produces in the concave mirror. Specify this distance relative to the concave mirror. Number H с Units Object > F
Can you help me with the wrong. Please? Thank you.
A spherical concave lens has a focal length of 50 cm, and an object is placed 25 cm from the lens. Draw a digram. Estimate the image distance Is it real or virtual upright or inverted magnified or reduced
A plane mirror and a concave mirror (f = 6.70 cm) are facing each other and are separated by a distance of 20.0 cm. An object is placed between the mirrors and is 10.0 cm from each mirror. Consider the light from the object that reflects first from the plane mirror and then from the concave mirror. Find the location of the image that this light produces in the concave mirror. Specify this distance relative to the concave mirror. Number i C Object F Units
In order to identify an unknown material you are asked to solve for the critical angle of the material. In order to test this you set up a beam of light that strikes the unknown substance from air (n = 1.0) at an angle of 30° with respect to the normal. It continues on in the substance at an angle of 23° with respect to the normal. What is the critical angle for the unknown substance? 51° 55° 60° 63°
A convex lens has a radius of curvature of 20 cm. A 36-cm high object is placed 15 cm in front of the lens. Determine the location, nature, size, and orientation of the formed image.
A small object is placed 25.0 cm to the left of a concave lens. A convex lens with a focal length of 12.0 cm is 30.0 cm to the right of the concave lens. The two-lens system forms a real inverted image 17.0 cm to the right of the convex lens. What is the focal length of the concave lens?
A concave lens has a focal length of -7 cm. A candle with a height of 9 cm is 24 cm away from the lens. Find the magnification of the image. If the image is upright give a positive answer and an inverted image should be a negative answer.
Consider the lens–mirror arrangement as shown. There are two final image positions to the left of the lens of focal length fL. One image position is due to light traveling from the object to the left and passing through the lens. The other image position is due to light traveling to the right from the object, reflecting from the mirror of focal length fM and then passing through the lens. For a given object position p between the lens and the mirror and measured with respect to the lens, there are two separation distances d between the lens and mirror that will cause the two images described above to be at the same location. Find both positions.
A concave mirror has a focal length of +30 cm. If an object is placed at a distance of +60 cm from this mirror, what is the magnification?