Question

A cheap replica is made of an old camera. If the lens in the old camera...

A cheap replica is made of an old camera. If the lens in the old camera was glass, and the lens in the replica is plastic with a smaller index of refraction than the glass, in order to have the same focal length the plastic lens will have to ___.

a. have the same curvature as the glass lens

b. be less strongly curved than the glass lens

c.be more strongly curved than the glass lens

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
For a lens in a photo camera to make a real and diminishedimage of an object,...
For a lens in a photo camera to make a real and diminishedimage of an object, the object has to be placed: A. between the focal point of the lens and the lens B. between the focal point and the center of curvature C. at a distance greater than twice of the focal length of the lens but less than “infinity” D. at any distance in front of the camera
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 1.46. We shall assume that the radii of curvature of its two surfaces have the same magnitude. Assume the lens is embedded in a fluid having refractive index similar to air. If the radii of curvature of this lens is 7.82mm, what is its focal length? If an object 10.0 mm tall is placed 17.0 mm from the eye lens,...
1. A spherical lens converges rays a) more than a semi-sphere b) same as the hemisphere...
1. A spherical lens converges rays a) more than a semi-sphere b) same as the hemisphere c0 less than the hemisphere d) none 2. For the hemisphere (curved side facing the incident light), the convergence of the rays, as the index of refraction increases from air to glass. a) increases b) decreases c) none d) no change 3. For the concave object (curved side facing the incident light), the divergence of the rays, as the index of refraction increases from...
One side of a lens is concave with the radius of curvature of 25cm, and the...
One side of a lens is concave with the radius of curvature of 25cm, and the other side is flat. The lens is made of glass with index of refraction of 1.5. Find the focal power of the lens? What is the type of lens (coverging or diverging)?
A converging lens is made using glass with index 1.5. The desired focal length is 60...
A converging lens is made using glass with index 1.5. The desired focal length is 60 cm. If one side of the lens is convex with radius of curvature 20 cm, how should the other side be made?
A single by bi-convex lens made of glass (index of refraction n=1.50 ) has surfaces with...
A single by bi-convex lens made of glass (index of refraction n=1.50 ) has surfaces with the radii of curvature R1= 26.0 cm and R2= -26 cm. (a) What is this focal length of the lens in the air? (b) if an object is placed at p=32 cm from the lens, where is the image? (Use plus sign for a real image, minus signs for the virtual.) (c) if the subject has a height of h+1.50 cm, how large is...
A single bi-concave lens (a lens with two concave surfaces) made of glass (index of refraction...
A single bi-concave lens (a lens with two concave surfaces) made of glass (index of refraction n = 1.55) has surfaces with radii of curvature r1 = -19.0 cm and r2 = 19.0 cm. What is the focal length of the lens in air? I got 17.32cm as the correct answer. Dont know the other two. If an object is placed at p = 20.0 cm from the lens, where is the image? (Use a positive sign for a real...
You are given a lens made of glass with an index of refraction, n = 1.45,...
You are given a lens made of glass with an index of refraction, n = 1.45, and radii of curvature, R1 = 10 cm and R2 = -80 cm. a) Calculate the focal length of this lens. b) A 5 cm tall object is placed 30 cm in front of this lens. Determine the image distance and the height of the image. Is the image upright or inverted? c) Draw a diagram to illustrate with the object and image positions...
A lens was made out of Diamond in order to take advantage of the material’s refractive...
A lens was made out of Diamond in order to take advantage of the material’s refractive index. However, diamond also has a high dispersion. What is the chromatic aberration limited resolution of a telescope made from diamond lenses if the objective lens has a focal length fO=25m and the eyepiece lens has a focal length fE=2.5cm? Ignore the chromatic aberrations due to the eyepiece. (Diamond index of refraction for red light nr=2.451, for violet light nv=2.407).
Which of the following is true about lenses? Assume all lenses have the same diameter and...
Which of the following is true about lenses? Assume all lenses have the same diameter and are made of glass. a) The best digital cameras have the smallest lenses. b) The focal length of a lens is twice the distance from the center of a lens to the focal point. c) A lens made with material with a lower refractive index has a shorter focal length. d) A large diameter lens in a camera can only take pictures in bright...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT