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If the refractive power of this lens was DECREASED, would the focal length for the lens increase or decrease? Explain your answer. 2. If the refractive power of this lens was DECREASED, would the focal length for the lens increase or decrease? Explain your answer. (2 pts) Question 1 4 pts Answer BOTH parts of this question 1. If light passing through a convex lens reaches its focal point 12.5 cm from the lens, what is the refractive power of...
A converging lens has a focal length of 40 cm. An object, of height 10 cm from optic axis to its tip, is placed 60 cm in front of the lens. Draw a ray diagram to get location of image and magnification. Then use the lens formula to make your answer precise.
One lens has a focal length of +15.6 cm. A second lens of focal length +21.1 cm is placed in contact with the first lens. What is the equivalent focal length of the combination of lenses?
A typical human lens has an index of refraction of 1.430. The lens has a double convex shape, but its curvature can be varied by the ciliary muscles acting around its rim. At minimum power, the radius of the front of the lens is 10.0 mm, whereas that of the back is 6.00 mm. At maximum power, the radii are 6.50 mm and 5.50 mm, respectively. If the lens were in air, what would be the maximum power and associated...
A convex lens has its focal length f= 44.8 cm. (a) Where will it focus the object, which is 2.0 m away from the lens? (b) What will be the size of the object's image if the size of the object is 1.5 cm?
what is the lens strength of a diverging lens that has a focal length of magnitude 700mm?
An object is 1.85 m to the left of a lens of focal length 0.9 m. A second lens of focal length -3.4 m is 0.74 m to the right of the first lens. Find the distance between the object and the final image formed by the second lens. An object is 1.85 m to the left of a lens of focal length 0.9 m. A second lens of focal length -3.4 m is 0.74 m to the right of...
What is the magnification of a telescope which has an objective lens of focal length 2.50 m and a diameter of 1.00 m, and an eyepiece of focal length 4.50 cm? What is the angular resolution of this telescope for visible light (wavelength = 550 nm)? What is the length of the telescope?
An object is 22.3 cm to the left of a lens that has a focal length of +8.5 cm. A second lens, which has a focal length of -30 cm, is 5.49 cm to the right of the first lens. An object is 22.3 cm to the left of a lens that has a focal length of +8.5 cm. A second lens, which has a focal length of -30 cm, is 5.49 cm to the right of the first lens....
An object is 1.95 m to the left of a lens of focal length 0.92 m. A second lens of focal length -3.6 m is 0.4 m to the right of the first lens. a) Find the distance between the object and the final image formed by the second lens. (in m) b) What is the overall magnification (with sign)? c) Is the final image real or virtual? real virtual d) Is it upright or inverted? 1. upright 2. inverted