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

Rotating a mirror and the reflected ray, Rotating a Mirror and the Reflecte...

Rotating a Mirror and the Reflected Ray Describing in which when a mirror is rotated through an angle, the reflected ray is rotated through twice that angle. You might drag th

Rutherford''s atomic model, RUTHERFORD'S ATOMIC MODEL:- Rutherford prop...

RUTHERFORD'S ATOMIC MODEL:- Rutherford proposed that all the positive charge and mass of the atom was concentrated in a small central region which is called the nucleus.This mo

G.m. counter, quenching process in g.m. counter

quenching process in g.m. counter

Define magnetic field half way between axis and outside edge, A copper rod ...

A copper rod which is 1 centimetre in diameter carries a current of 5 amps. The current is distributed uniformly throughout the rod. The magnetic field half way between the axis

Measuring ield strength of permanent magnets, I want to measure H, not B Th...

I want to measure H, not B The magnets in question are permanent magnets (large Neo or SmCo magnets), not coils ============================== Steel _______

Explain the machine, Explain the Machine A machine is anything that mak...

Explain the Machine A machine is anything that makes work easier. Does it do the work for you? No, you don’t get something for nothing in this world, but it can make the work e

Define the unit of self inductance, Q. Define the unit of self inductance. ...

Q. Define the unit of self inductance. One henry is described as the self-inductance of a coil in which a change in current of one ampere per second produces an opposing emf of

Describe the principle of a moving coil galvanometer, With the help of a ne...

With the help of a neat and labelled diagram, describe the underlying principle and working of a moving coil galvanometer. What is the function of? (i) Uniform radial field

Forces, what is the difference between pulling and pushing forces

what is the difference between pulling and pushing forces

State hooke''s law, Hooke's law is valid for only little deformation. Hook...

Hooke's law is valid for only little deformation. Hooke's principle describes that the extension produced in the wire is directly proportional to the load applied within elastic l

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages