Question
In: Other
What of the following statements is true for refracting telescopes? The main focusing optical piece is...
What of the following statements is true for refracting telescopes?
- The main focusing optical piece is a mirror
- It is mostly used by professional astronomers
- The main focusing optical piece is lenses
- It is easy to build a large telescope.
Solutions
Expert Solution
Answer:
Refracting telescopes use lenses to observe far distant objects. Initially astronomers use this telescopes to study space research. The main disadvantage of refracting telescopes was they required very thick lens and they had chromatic aberrations.
As per above explanation, for refractive telescopes
1. The main optical piece is a mirror. False. The main optical piece is lens in refracting telescopes.
2. It is mostly used by professional astronomers. False. Reflecting telescopes, infrared telescopes, radio telescopes, gamma rays telescopes, are widely used by professional astronomers.
3. The main optical piece is lenses. True. Refracting telescope uses two lenses one as objective lens and other as eye piece lens to observe the distant image more closer.
4. It is easy to build a large telescope. False. To build a large refracting telescope, using high quality lenses is costly and they are heavy by weight.
Amanda K answered 1 month agoRelated Solutions
3. Radio telescopes are often much larger in diameter than optical (i.e. visible light) telescopes; some...
3. Radio telescopes are often much larger in diameter than
optical (i.e. visible light) telescopes; some of the larger ones
have diameters of 100 meters, while the largest optical telescopes
are only about 10 meters in diameter. Assume that radio telescopes
observe at wavelengths around 1 cm, which is about 20,000 times
longer than the wavelengths of visible light.
a) Explain why these large radio telescopes have much greater
light-gathering power than large optical telescopes. Explain what
quantities light-gathering power...
Which of the following statements regarding optical traps is/are true? A light source with an intensity...
Which of the following statements regarding optical traps is/are
true?
A light source with an intensity characterized by a uniform
cross-section is required.
The name is actually a misnomer because light is not actually
being used to generate the trapping forces.
Changes in momentum of the photons result in changes in momentum
of a dielectric sphere when it is in the trap.
Optical traps typically generate forces on the order of
nanoNewtons.
We often use telescopes to capture beautiful pictures of the planets and distant galaxies. If optical...
We often use telescopes to capture beautiful pictures of the
planets and distant galaxies. If optical telescopes like the Hubble
telescope can capture pictures of galaxies millions of light years
away, why can’t we get detailed photos of stars and planets in our
own galaxy that are only a few hundred light years away?
James Short was a maker of optical instruments, particularly telescopes. He was born in Edinburgh, Scotland...
James Short was a maker of optical instruments, particularly
telescopes. He was born in Edinburgh, Scotland and entered the
University of Edinburgh in 1726, where he attended lectures by the
mathematician Colin Maclaurin. Short is perhaps best remembered for
his observations of the transit of Venus on June 6, 1761. His
profession made him quite a rich man, by the way. The attached
table (see the txt file) provides James Short's measurements of the
parallax of the sun (in seconds...
Tioga Company manufactures sophisticated lenses and mirrors used in large optical telescopes. The company is now...
Tioga Company manufactures sophisticated lenses and mirrors used
in large optical telescopes. The company is now preparing its
annual profit plan. As part of its analysis of the profitability of
individual products, the controller estimates the amount of
overhead that should be allocated to the individual product lines
from the following information.
Lenses
Mirrors
Units produced
22
22
Material moves per product line
17
7
Direct-labor hours per unit
230
230
The total budgeted material-handling cost is
$71,720.
Required:
Under...
Tioga Company manufactures sophisticated lenses and mirrors used in large optical telescopes. The company is now...
Tioga Company manufactures sophisticated lenses and mirrors used
in large optical telescopes. The company is now preparing its
annual profit plan. As part of its analysis of the profitability of
individual products, the controller estimates the amount of
overhead that should be allocated to the individual product lines
from the following information.
Lenses
Mirrors
Units produced
24
24
Material moves per product line
22
12
Direct-labor hours per unit
240
240
The total budgeted material-handling cost is
$61,440.
Required:
Under...
Are the following statements true or false, and why? 1- The main factor in determining acceptable...
Are the following statements true or false, and why?
1- The main factor in determining acceptable audit risk is the
assessed level of control risk and inherent risk. 2- If inherent
risk increases for a client, then control risk will increase 3- If
planned detection risk increases for a client and other things
remain equal, less audit evidence collection and testing will be
required
(about solid state physics, optical communication) The main principle of optical communication is the concept of...
(about solid state physics, optical
communication)
The main principle of optical communication is the concept of total
reflection. I wonder if the total reflection is based on particle
property of light, or wave property of it.
The total reflection is the concept of refraction and
reflection. I know that refraction and reflection of light are all
properties that correspond to the particle and wave of light.(I
mean, Particle property of light can explain refraction and
reflection, and Wave property of...
Which of the following statements are true?
Which of the following statements are true? 1. Fats that contain more saturated fatty acid residues than unsaturated fatty acid residues are more likely to be solid at room temperature. 2. Triacylglycerols (triglycerides) contain ester bonds. 3. Saturated fats have lower melting points than do unsaturated fats. 4. Triacylglycerols (triglycerides) always contain three identical fatty acids. 5. Unsaturated fats are more likely than saturated fats to be liquid at room temperature.
Which of the following statements is true?
Which of the following statements is true?When a company goes bankrupt, common stockholders are the first
to get paid.A preferred stock promises investors a fixed stream of dividend
payments.Holders of preferred stocks have residual claim on the company’s
assets and cash flows.Investing in a bond of a company is riskier than investing in a
stock of the same company.
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- A room with 2.7-m-high ceilings has a metal plate on the floor with V = 0V...
- which of the following statements are true? a) the same nuclear changes (creation/destruction of specific nucleons)...
- Overview: Advances in technology have impacted many facets of the auditing process, from assessing risk and...
- Background: This course is all about data visualization. However, we must first have some understanding about...
- A rescue helicopter lifts a 70.6-kg person straight up by means of a cable. The person...
- Dolomite, [CaMg(CO3)2] is found in a soil sample. A geochemist titrates 24.65 g of soil with...
- 4) Cost per equivalent unit of direct materials and conversion (4 marks) The cost per equivalent...
ADVERTISEMENT