Explain about refracting telescopes, Physics

Assignment Help:

Refracting telescopes, if uncorrected, suffer from chromatic aberration. 

Chromatic aberration occurs because:

a)  red light is focused more strongly than blue light

b)  blue light is focused more strongly than red light

c)  the outer light rays are focused more strongly than the central rays,

d)  the central light rays are focused more strongly than the outer rays.

 

Ans- Blue light is focused more strongly than red light

 

 


Related Discussions:- Explain about refracting telescopes

What is atmospheric pressure, The atmospheric pressure at any position is n...

The atmospheric pressure at any position is numerically similar to the weight of a column of air of unit cross-sectional area extending from that position to the top of the atmosph

Determine the length of this heat exchanger, A concentric tube heat exchang...

A concentric tube heat exchanger is comprised of a thin wall inner tube of 25.4 mm diameter and an outer tube of 47 mm diameter. The heat exchanger is used for cooling lubricating

Simple harmonic motion, Any motion which changes it after regular interval ...

Any motion which changes it after regular interval of time is known as periodic or harmonic motion. When the body of a pendulum moves to and fro through a short angle, the bob is k

Is it probable for an electron to be moving northward, Is it probable for a...

Is it probable for an electron to be moving northward in a northward-directed electric field? Answer: The force exerted on a negatively charged particle with an electric f

Why like charges repel , It is worth noting that positive charges have line...

It is worth noting that positive charges have lines of forces moving out from them and negative charges have lines of forces entering them.for attraction of charges one charge must

What is an animation harness, What is an animation harness? A group of ...

What is an animation harness? A group of fiber optics arranged into a sequential numbered and fashion. The fibers are after that installed in similar order and, with the help o

What makes a good common end, What makes a good common end? The capacit...

What makes a good common end? The capacity to hold the fibers always and flushes, lack of adhesives, absence of packing losses and optical polish.

Increased speed by using a pulley, Using a pulley Use the pulley set-up...

Using a pulley Use the pulley set-up shown in experiment A 12. Apply the force on the movable pulley and get how rapidly the weight on the other end of the string rises.

Explain capacitor, Capacitor: A capacitor is a device used to kept char...

Capacitor: A capacitor is a device used to kept charge and electrical energy. The stored electrical energy in a capacitor can be utilized according to the need. Factors on w

Movement of principal ray, Q. Movement of principal ray? In every case ...

Q. Movement of principal ray? In every case a principal ray moves from the head of the object to the plane of the lens. It passes through the plane of the lens as well as conti

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd