Question

1. When using a telescope, at what point does the objective lens focus an image? 2....

1. When using a telescope, at what point does the objective lens focus an image?

2. Why can't the objective be used as a magnifier?

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
In a compound microscope, which lens moves to change the focus point? Does this affect the...
In a compound microscope, which lens moves to change the focus point? Does this affect the magnification? a) The eyepiece, magnification of the in-focus image doesn't change b) The objective, magnification of the in-focus image changes c) The objective, magnification of the in-focus image doesn't change d) The eyepiece, magnification of the in-focus image changes Detailed explanation please, type if possible. Thank you!
A telescope works by taking a distant object, creating an image at the focal point with...
A telescope works by taking a distant object, creating an image at the focal point with the objective lens, and then having the eyepiece lens use that image as its object to create a second image at infinity. Why infinity? So that you don’t need to put your eye in any particular place to see it, and it looks like any other distant object. Q0.1. If both lenses are converging, what should the theoretical magnification be, positive or negative? If...
The angular magnification of a refracting telescope is 40. When the object and final image are...
The angular magnification of a refracting telescope is 40. When the object and final image are both at infinity, the distance between the eyepiece and the objective is 143.5 cm. The telescope is used to view a distant radio tower. The real image of the tower, formed by the objective, is 6.0 mm in height. The focal point of the eyepiece is positioned at the real image. What is the angle subtended by the final image of the tower? a:...
An insect 1.3mm tall is placed 0.9mm beyond the focal point of the objective lens of...
An insect 1.3mm tall is placed 0.9mm beyond the focal point of the objective lens of a compound microscope. The objective lens has a focal length of 14mm , the eyepiece a focal length of 30mm . Where is the image formed by the objective lens? Give your answer as the distance from the image to the lens. Express your answer using two significant figures. How tall is the image mentioned in part A? Express your answer using two significant...
17. What is the benefit of having a large objective lens? A) It will produce a...
17. What is the benefit of having a large objective lens? A) It will produce a brighter image. B) It will produce an inverted image. C) It will produce a larger image. D) It will produce a real image. E) It will produce an image a shorter distance from the lens. 18. What best describes the image formed by the objective lens? A) Virtual and reduced. B) Real and enlarged. C) Virtual and enlarged. D) Real and reduced. 19. What...
a) Can a diverging lens be used as a magnifier? b) What is the maximum value...
a) Can a diverging lens be used as a magnifier? b) What is the maximum value that the focal length of a magnifying lens can have? c) A magnifier has a magnification of 5X. How far from the lens should an object be held so that its image is at the near-point distance of 25 cm?
The telescope at Yerkes Observatory in Wisconsin has an objective whose focal length is 19.4 m....
The telescope at Yerkes Observatory in Wisconsin has an objective whose focal length is 19.4 m. Its eyepiece has a focal length of 10.0 cm. (a) What is the angular magnification of the telescope? (b) If the telescope is used to look at a lunar crater (diameter = 5130 m), what is the size of the first image, assuming the surface of the moon is 3.77 × 108 m from the surface of the earth? (c) How close does the...
The tube length in compound microscope is 26 cm. The focal length of the objective lens...
The tube length in compound microscope is 26 cm. The focal length of the objective lens is 2 cm. The clearest image is formed when an object of height 1 mm is placed at a distance of 2.18 cm from the objective lens. Determine: 1. The position of the intermediate image, 2. the focal length of the eye piece, that will place the final image at the near-point, 3. the total magnification of the microscope and the height of the...
An important reason for using a very large diameter objective in an astronomical telescope is to...
An important reason for using a very large diameter objective in an astronomical telescope is to decrease the magnification. to increase the resolution. to form a virtual image, which is easier to look at. to increase the width of the field of view. to increase the depth of the field of view For two beams of light traveling different distances in reaching a point, and to form maximum constructive interference at that point, the beams must travel paths that differ...
When using a converging lens, how does the object’s location affect whether an image is (a)...
When using a converging lens, how does the object’s location affect whether an image is (a) enlarged (bigger than the object) or reduced (smaller than the object) (b) upright or inverted?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT