1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jekas [21]
3 years ago
12

What problem do refractor telescopes have that reflectors don't? Group of answer choices bad seeing light loss from secondary el

ements diffraction limited resolution spherical aberration chromatic aberration
Physics
1 answer:
Paul [167]3 years ago
8 0

chromatic aberration problem do refractor telescopes have that reflectors don't

<u>Explanation:</u>

Chromatic aberration is a phenom in which light rays crossing through a lens focus at various points, depending on their wavelength. Chromatic aberration is a dilemma in which lens or refracting, telescopes undergo from. The various image distances for the respective colors affect various image sizes for them.

This involves the creation of disturbing color fringes in the image. Chromatic aberration can be pretty well adjusted by the use of an achromatic doublet. Here, a positive biconvex lens is coupled with a negative lens placed backward with greater dispersion. Thus partly compensates for the chromatic aberration.

You might be interested in
What are the characteristics of gas giants?
maw [93]
Their compositions are mostly gases, such as hydrogen, and small amountsof rocky material (mostly at theircores). hope this helps .have a nice day
8 0
4 years ago
Read 2 more answers
Use complete sentences to differentiate between acids and bases on the basis of their behavior when dissolved in water Give an e
grigory [225]

Explanation:

An acid is a substance that interacts with water to produce excess hydroxonium ions, H₃O⁺ in an aqueous solution.

The hydroxonium ions formed by the chemical bonding between the oxygen of water molecules and the protons released by the acid due to its excess ionization.

  For example:

              HCl          +         H₂O ⇄       H₃O⁺         +             Cl⁻

               acid                    water         hydroxonium         chloride

A base is a substance that interacts with water to yield excess hydroxide ions, OH⁻ in an aqueous solutions:

            NH₃        +          H₂O       ⇄       NH₄⁺     +            OH⁻

        Ammonia            water          ammonium              hydroxide

These explanations are based on the arrhenius theory.

learn more:

Bronsted-lowry theory  brainly.com/question/4083753

Acid reaction brainly.com/question/5273689

#learnwithBrainly

4 0
3 years ago
A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.870 m/s at an
Vladimir79 [104]

Answer:

Thickness of magazine = 9.42 mm.

Explanation:

Considering vertical motion of spider:-

Initial velocity, u =  0.870 sin 35 = 0.5 m/s

Acceleration , a = -9.81 m/s²

Time, t = 0.077 s

We have equation of motion s= ut + 0.5 at²

Substituting

   s= 0.5 x 0.077 - 0.5 x 9.81 x 0.077²

    s = 9.42 x 10⁻³ m = 9.42 mm

Thickness of magazine = 9.42 mm.

6 0
3 years ago
Una banda de rock toca en un nivel<br>de sonido de 80 dB ¿Cuál es la<br>intensidad de ese sonido?​
BabaBlast [244]
Nsnshsjsnsn nsnsnsnssjsins
4 0
3 years ago
Recent findings on the topic of brain based research indicate all of the following except
Gre4nikov [31]
The answer is D, the brain actually stops growing around age 18
5 0
3 years ago
Other questions:
  • A huge, jagged rock sits atop a windy cliffside. Over a period of many years, how will the rock MOST LIKELY change?
    14·2 answers
  • If you are behind other vehicles, use low beams when you are within __________ feet of the vehicle ahead.
    6·1 answer
  • On gasoline powered boats, when should the blower be activated
    13·1 answer
  • The discovery of which force most directly impacted our society by allowing the development of nuclear weapons
    9·1 answer
  • Einstein's theory of general relativity is currently the best explanation of gravity. Why has this theory not been replaced with
    15·1 answer
  • Biodiesel is a type of fuel that can be made from animal fat. During production, animal fats and alcohol chemically react to pro
    14·2 answers
  • What has a larger wavelength the color iolet or the color red?explain?
    9·2 answers
  • Need help as fast as possible please<br> Thank you!
    9·2 answers
  • A proton is located on Earth and an Electron is located on the Moon.
    12·1 answer
  • Explain the expression “light travels at a speed”.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!