Question

a reflection telescope has parabolic mirror for which the distance from the vertex to the focus...

a reflection telescope has parabolic mirror for which the distance from the vertex to the focus is 25 feet. if the distance across the top of the mirror is 62 inches, how deep is the mirror in the center?

Homework Answers

Know the answer?
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
Similar Questions
A Newtonian telescope, which has an F/5 parabolic primary mirror with a diamter of 200 mm,...
A Newtonian telescope, which has an F/5 parabolic primary mirror with a diamter of 200 mm, is used to image the Moon. Find the radius of curvature of the mirror and the image size of the Moon in the focal plane if the angular size of the Moon is 0.5 deg For the parabolic mirror in the previous problem, estimate the field curvature and determine whether one can use a flat detector to image the full Moon at the wavelength...
1) For a concave spherical mirror the distance from the mirror to the focus of the...
1) For a concave spherical mirror the distance from the mirror to the focus of the mirror is:\ -equal to the radius of curvature -is half the radius of curvature -is one third the radius of curvature -is twice the radius of curvature 2) When light goes from one medium into another, the bending is explained by: -Snell's Law -Refractive index -Newton's Law -Pascal's Law
A conical water tank with vertex down has a radius of 14 feet at the top...
A conical water tank with vertex down has a radius of 14 feet at the top and is 21 feet high. If water flows into the tank at a rate of 20 ft^3/min, how fast is the depth of the water increasing when the water is 13 feet deep?
a conical water tank with the vertex down has a radius of 9feet at the top...
a conical water tank with the vertex down has a radius of 9feet at the top and is 23 feet high. If water flows into the tank at a rate of 30ft^3/min, how fast is the depth of the water increasing when the water is 17 feet deep? Include units
An object 3.4 mm tall is placed 25 cm from the vertex of a convex spherical...
An object 3.4 mm tall is placed 25 cm from the vertex of a convex spherical mirror. The radius of curvature of the mirror has magnitude 69 cm. (a) How far is the image from the vertex of the mirror? (b) What is the height of the image?
A parabolic reflector antenna having a circular opening of radius 0.35 m is used to focus...
A parabolic reflector antenna having a circular opening of radius 0.35 m is used to focus sound waves. Assume that the intensity level of a whisper is 20 dB at 1 m from a speaker, and that the threshold of hearing is 0 dB for which . (i) Determine the power of the acoustic wave generated by a whisper. (ii) If the energy of a whispered conversation is collected by the parabolic antenna at a distance R from the speaker,...
32.5: The primary mirror of the Hubble Space Telescope is 2.4 m in diameter. Suppose it...
32.5: The primary mirror of the Hubble Space Telescope is 2.4 m in diameter. Suppose it is most sensitive to light of wavelength of 820 nm.    a) What is the diffraction limited angular resolution of the Hubble Space Telescope?    b) If the HST were used to look at the surface of the Moon, what is the minimum distance between two distinguishable points? (The Moon orbits at a distance of 384000 km from the center of the Earth which...
A parabolic reflector antenna having a circular opening of radius 0.35 m is used to focus...
A parabolic reflector antenna having a circular opening of radius 0.35 m is used to focus sound waves. Assume that the intensity level of a whisper is 20 dB at 1 m from a speaker, and that the threshold of hearing is 0 dB for which �C = 106K: W/m:. (i) Determine the power of the acoustic wave generated by a whisper. (ii) If the energy of a whispered conversation is collected by the parabolic antenna at a distance R...
a) The Mount Palomar telescope has an objective mirror with a 508 cm diameter. Determine its...
a) The Mount Palomar telescope has an objective mirror with a 508 cm diameter. Determine its angular limit of resolution at a wavelength of 550 nm (in radiants and degrees). (Recall that you can resolve two objects only if the maxima of their images are separated by at least the radius of the first dark fringe of each image’s Airy disk). b) How far apart must two objects be on the surface of the Moon if they are to be...
A 150 cm tall girl standing 1.0 m from a 75 cm, vertical plane mirror sees...
A 150 cm tall girl standing 1.0 m from a 75 cm, vertical plane mirror sees her entire image in the mirror. If she moves to a distance 0.5 m from the mirror, which of the following is true. A/she wont be able to see the top of the head B/ she will only see half of herself C/She wont be able to see her feet D/She willl still see her entire self
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT