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

Experiment of a single fixed pulley, A single fixed pulley Set up a one...

A single fixed pulley Set up a one fixed pulley as shown in the diagram below. By means of weights see how much force is needed to lift weights of 25, 50, 75, 100 and 200 g. Ca

Define hall effect, The Phenomenon of producing a transverse emf in a curre...

The Phenomenon of producing a transverse emf in a current carrying conductor on applying a magnetic field perpendicular to the direction of the current is known as Hall effect.

Determine percentage of carbon in mild steel, The percentage of carbon in m...

The percentage of carbon in mild steel is (A) 0.08 to 0.3 %        (B) 0.5 to 1.4 % (C) 2.35 %                   (D) 0.5 % Ans: The percentage of carbon in mild st

Manganin is an alloy of which materials, Manganin is an alloy of (A) C...

Manganin is an alloy of (A) Copper, manganese and nickel. (B) Copper and manganese. (C) Manganese and nickel.               (D) Manganese, aluminium and nickel. Ans:

Temperature co-efficient of resistance, The temperature co-efficient of res...

The temperature co-efficient of resistance: The temperature co-efficient of resistance is defined as;           The Fractional change in resistance from 0ºC, per degree temp

Electric field to be non-zero at a point in space, Is it probable for the e...

Is it probable for the electric field to be non-zero at a point in space where the electric potential is zero? Ans: Regard as for instance the case of an electric potential

Semi-conductors, Semiconductor is solid material whose electrical conductiv...

Semiconductor is solid material whose electrical conductivity at room temperature lies between conductivity of a conductor and that of an insulator. At high temperatures its conduc

Applications of newton''s laws - ii, APPLICATIONS OF NEWTON'S LAWS - II ...

APPLICATIONS OF NEWTON'S LAWS - II 1.  As the body moves through the body it displaces the fluid. It has to exert a force on the fluid to push it out of the path. By the Newto

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