Question

2. A convex lens of focal length 24 cm and refractive index of glass is 1.5. Find the foca length of this lens if it is total
A far sighted person cannot see objects clearly that are closer to the eye than 73 cm Determine the focal length of contact l
0 0
Add a comment Improve this question Transcribed image text
Answer #1

Solotimt let the foca( lem.* 일 the lens wa ; er For I 5 0-5 0 128 e 93- 75 m Solution here Це 38 02 cm 2u-v

Add a comment
Know the answer?
Add Answer to:
2. A convex lens of focal length 24 cm and refractive index of glass is 1.5....
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
  • 1. f the refractive index of glass is 1.5, what is the critical angle at the...

    1. f the refractive index of glass is 1.5, what is the critical angle at the air-glass interface?                                                                                                                                   (5 marks) 2. A man wears convex lens glasses of focal length 30 cm in order to correct his eye defect. Instead of the optimum 25 cm, his least distance of distinct vision is what?                                                                                                                                          (5 marks) 3. A man hears his echo from a nearby his 2 seconds after he shouted. If the Frequency of his voice is 260Hz and the...

  • A lens-maker wants to make a magnifying glass of focal length 19 cm from a glass...

    A lens-maker wants to make a magnifying glass of focal length 19 cm from a glass with refractive index 1.53. If the two lens surfaces have equal radii of curvature, what should that radius be?

  • 22. (i) A concave surface with a radius of 4 cm separates two media of refractive...

    22. (i) A concave surface with a radius of 4 cm separates two media of refractive index n1 1.00 and n2- 1.5. Find the primary focal length and the secondary focal length. (ii) A biconvex glass lens has radii of curvatures 12 cm and 18 cm. The refractive index of glass is 1.44. Calculate the focal length of the lens. (iii) The radii of both surfaces of an equi-convex lens of refractive index 1.6 are equal to 8.0 cm. Find...

  • 1) A magnifying glass has a convex lens with a focal length of 12 cm. A...

    1) A magnifying glass has a convex lens with a focal length of 12 cm. A rock is placed 30 cm away from the lens. What is the magnification factor of the rock? 2) A laser has a wavelength of 1064 nm in air. It enters some diamond with an index of refraction of 2.42. What is the wavelength of the light in the diamond? a. 530 nm b. 2600 nm c. 440 nm d. 100 nm e. 1060 nm

  • If the refractive power of this lens was DECREASED, would the focal length for the lens...

    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...

  • 1. You have a converging lens with a focal length of 1.5 cm and a diverging...

    1. You have a converging lens with a focal length of 1.5 cm and a diverging lens with a focal length of 2.5 cm. You also have a binder clip with a height of 1.6 cm. A. Sketch the ray tracing if the binder clip is 4.1 cm from the converging lens. B. Use the thin lens equation to calculate the location and size of the image if the binder clip is 4.1 cm from the converging lens. C. What...

  • A plano-convex lens is immersed in a liquid that has a refractive index n1. Derive the...

    A plano-convex lens is immersed in a liquid that has a refractive index n1. Derive the lens maker’s equation (shown below) in this situation assuming that n1 is smaller than the refractive index of the lens (nL). Lens maker equation: 1/f = (n1-1)/r   where f: focal length of lens and r: radius of curvature of lens

  • A magnifying glass is a single convex lens with a focal length of ff = 13.0...

    A magnifying glass is a single convex lens with a focal length of ff = 13.0 cm . What is the angular magnification when this lens forms a (virtual) image at the person's near point (assumed to be 25 cm)? M =

  • One lens has a focal length of +15.6 cm. A second lens of focal length +21.1...

    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?

  • An optometrist determines that a patient cannot clearly see any object that lies closer than 67.2 cm

    An optometrist determines that a patient cannot clearly see any object that lies closer than 67.2 cm (a) Which of the following terms best describes this distance? far point ncar point magnification focal length  (b) The patlent needs to be able to clearly see objects that are just 23.0 cm distant. A contact lens is prescribed. What focal length (in cm) should this lens have? Assume the lens can be modeled as an Ideal thin lens, which lies adjacent to the eye. (c) What is the power,...

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