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

Couple, state the conditions under which two forces form a couple and give ...

state the conditions under which two forces form a couple and give an example of couple

Peltier’s effect, a) Heat produced or absorbed at a junction is proportiona...

a) Heat produced or absorbed at a junction is proportional to the current by the junction. b) This effect is produced when current is passed by junction of suitable materials.

Explain secondary cell, A secondary cell is that cell is which the electric...

A secondary cell is that cell is which the electrical energy is first up as a chemical energy and when the current is taken from the battery, the chemical power is reconverted into

Rydberg constant, Rydberg constant (Rydberg): A constant that governs ...

Rydberg constant (Rydberg): A constant that governs the relationship of the spectral line features of an atom by the Rydberg formula. For hydrogen, it is about 1.097 x 10 7 m

Light absorbing materials in solar cells, All solar cells require a light a...

All solar cells require a light absorbing material contained within the cell structure to absorb photons and generate electrons via the photo voltaic effect. The materials used in

Explain biot savart law and measure magnetic field, a)  Explain ampere's la...

a)  Explain ampere's law and calculate magnetic field at any point P beacuse of (i)  Infinite long wire (ii)  Inside a solenoid (iii)  Inside a toroid   b) Explain Biot S

Physical significance of gradient of a scalar function, Explain the physica...

Explain the physical significance of gradient of a scalar function?

Explain deflection magnetometer, Its working is based on the principle of t...

Its working is based on the principle of tangent law. It having of a small compass needle, pivoted at the centre of a circular box. The box is reserved in a wooden frame having two

Determine the speed of the mass when kinetic energy is given, As a 10 kilog...

As a 10 kilogram mass on the end of a spring passes through its equilibrium position, the kinetic energy of the mass is 20 joules. The speed of the mass is: a) 2.0 meters per

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