The Keck telescope has an effective diameter of 10.0 m. What is the limiting angle of resolution for light at 600 nm? (7.3 x 10-8 radians = 0.015 s of arc) Consider how far apart two mountains on the moon have to be to see that difference; two stars of a binary system 12.4 ly away.

The limiting angle is 7.32x10⁻⁸rad and the separation distance is 8.586x10⁹ rad m

Explanation:

Given data:

λ = 600 nm = 6x10⁻⁷m

D = 10 m

The limiting angle of resolution is equal to:

According Rayleigh expression:

L = 12.4 light year = 1.173x10¹⁷m

close lines strong magnet less close weaker

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is