Question

A double-concave lens having radii of curvature of magnitudes 35.0 cm and 25.5 cm is made...

A double-concave lens having radii of curvature of magnitudes 35.0 cm and 25.5 cm is made of a glass for which the refractive index for red light of wavelength 700 nmis 1.44 and for violet light of wavelength 400 nm is 1.57. A white object is placed 54.0 cm in front of this lens.

A) Where will the red light be focused? Give your answer as the magnitude of the distance from the image to the lens.

sred= ?? cm

B) Where will the violet light be focused? Give your answer as the magnitude of the distance from the image to the lens.

sviol= ?? cm

0 0
Add a comment Improve this question Transcribed image text
Answer #1

a) The thin lens formula 1 Ri--35cm R.-25.5cnm Wehave lens formula f v u V Image dis tan ce u = object distance V u R, R2 u=5

b) Forviolet 253 v 54 1.57-1) -35 25.5) 54 =-0.0157 vー-17.49cm

Add a comment
Know the answer?
Add Answer to:
A double-concave lens having radii of curvature of magnitudes 35.0 cm and 25.5 cm is made...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • The magnitudes of the radii of curvature are 33.0 cm and 42.6 cm for the two...

    The magnitudes of the radii of curvature are 33.0 cm and 42.6 cm for the two faces of a biconcave lens. The glass has index of refraction 1.53 for violet light and 1.51 for red light. (a) For a very distant object, locate the image formed by violet light. (Give your answer to two decimal places. Indicate the position of the image relative to the lens with the sign of your answer.) WebAssign will check your answer for the correct...

  • The crystalline lens of the human eye is a double-convex lens made of material having an...

    The crystalline lens of the human eye is a double-convex lens made of material having an index of refraction of 1.44 (although this varies). Its focal length in air is about 8.00 mm , which also varies. We shall assume that the radii of curvature of its two surfaces have the same magnitude. (Note: The results obtained in the parts A, B and C are not strictly accurate, because the lens is embedded in fluids having refractive indexes different from...

  • Problem 1. A concave-convex lens with index of refraction n = 3/2, radii of curvature R1...

    Problem 1. A concave-convex lens with index of refraction n = 3/2, radii of curvature R1 = ?3cm and R2 = 1cm is 4cm to the left of a diverging lens having focal length ?2cm. An object is placed to the left of both lenses at a distance 7 cm from the concave-convex lens. (a) Where is the final image formed by this combination of lenses? (b) Is the final image upright or inverted? (c) Is the final image real...

  • o Consider a thin double concave lens, with each face having a radius of curvature of...

    o Consider a thin double concave lens, with each face having a radius of curvature of 35 cm. The glass composing the lens has an index of refraction of 1.4 1.What is the focal length of this lens? 2.If an 1 cm object is placed at 1.5x the focal length, where is the image and how big is it, according to the thin lens equation? 3.Is the image real or virtual? Right side up? Hint: when sketching your ray diagram,...

  • A biconvex lens has two distinct radii of curvature. One face has a radius of curvature of magnitude R1 = 12.3 cm

    A biconvex lens has two distinct radii of curvature. One face has a radius of curvature of magnitude R1 = 12.3 cm, and the opposite face has a radius of curvature of magnitude R2 = 17.9 cm. The lens medium has an index of refraction of n = 1.51. (a) Calculate the focal length (in cm) of the lens for light incident on the side with radius of curvature R1.  (b) Calculate the focal length (in cm) of the lens for light...

  • A lens of thickness t = 21 cm has convex radii of curvature of magnitude R1...

    A lens of thickness t = 21 cm has convex radii of curvature of magnitude R1 = 24.5 cm and R2 = 42 cm. The index of refraction of the lens is n = 1.58. An object “O” is placed 94.5 cm to the left of the lens. Where is I2, the image due to the second surface, relative to the first surface? Answer in units of cm. I have calculated I1 as 120.689376.

  • 1.) A double-concave lens focal length -20 cm has an object placed at a distance of...

    1.) A double-concave lens focal length -20 cm has an object placed at a distance of 30 cm in front of it. How far from the mirror is the image formed? On what side of the lens is the image formed? What is the magnification? Is the image real or virtual? Upright or inverted? 2.) The second order fringe is located 5-cm from the central fringe when formed by a 10 lines/mm diffraction grating on a screen 5 meters away....

  • A biconcave lens is made with glass (n 1.36) and has a magnitude of curvature T1 - 1.0 cm on the front surface and a magnitude of curvature T2-7.0 cm on the back surface, as pictured. r1 r2 This...

    A biconcave lens is made with glass (n 1.36) and has a magnitude of curvature T1 - 1.0 cm on the front surface and a magnitude of curvature T2-7.0 cm on the back surface, as pictured. r1 r2 This lens is in air and you may use the lensmaker's equation n- 1 to find other relationships in this problem, if needed. We place an object of height h 4.08 mm a distance s-6.0 cm from the center of the lens...

  • The focal length of a lens is inversely proportional to the quantity (n−1), where n is...

    The focal length of a lens is inversely proportional to the quantity (n−1), where n is the index of refraction of the lens material. The value of n, however, depends on the wavelength of the light that passes through the lens. For example, one type of flint glass has an index of refraction of nr=1.572 for red light and nv= 1.615 in violet light. Now, suppose a white object is placed 21.50 cm in front of a lens made from...

  • A concave spherical mirror with a radius of curvature of 100 cm generates an inverted image...

    A concave spherical mirror with a radius of curvature of 100 cm generates an inverted image at a distance of 2.5 m from the mirror. What is the magnification of the image? 1.5 -4.0 -5.0 -0.25 O 0.25 A soap film (n = 1.33) sits on top of a plastic plate (n = 1.37). White light strikes the film nearly perpendicularly. The smallest nonzero film thickness for which the film appears bright due to constructive interference is 153 nm. What...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT