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

How many arsenic atoms should there be for each silicon atom, Silicon has 1...

Silicon has 1.45 x 10 10 free electrons/cm 3 at room temperature. If you wanted to have 3x10 6 as many electrons from arsenic doping as thermal free electrons from silicon at ro

Schrodinger''s wave equation in a three dimensional box., Q. Write down Sch...

Q. Write down Schrodinger's wave equation for a particle in a three dimensional box. Solve it to get eigen functions and show that the eigen values are discrete.  Ans. Fr

Rutherford''s Experiment , My question is that if voltage is increased, the...

My question is that if voltage is increased, the electrons will move faster and the distance between them is changed. Why?

Derive the Electric Field, Start from the expression of the electric field ...

Start from the expression of the electric field outside an infinite sheet of uniform surface charge density, E = s/2epsilon, derive the electric field just outside an ideal conduct

Instantaneous velocity and instantaneous speed, Can instantaneous velocity ...

Can instantaneous velocity answer instantaneous speed be equal in uniform motion

Length of the solenoid. , The magnetic field B inside a solenoid, having a ...

The magnetic field B inside a solenoid, having a current of 5 A, is 3.14 X 10 -2 T. Determine the number of turns per unit length of the solenoid.

Rectifier, junction diode as a half wave rectifier

junction diode as a half wave rectifier

What do you understand by absorption coefficient, What do you understand by...

What do you understand by "Absorption coefficient"? which is a better absorber of sound, glass or fibre glass?

Motion in one dimension, A packed parachute is dropped from rest from an ai...

A packed parachute is dropped from rest from an airplane. A daredevil is launched straight down rom the plane 3.00s later. Neglecting air resistance, the daredevil catches up to th

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