The 305 mdiameter Arecibo radio telescope detects radio waves with wavelengths from 3 to 100 cm. What is the angle in radians between two just-resolvable 5.00 cm wavelength point sources for this telescope?

θ = 2.00x10⁻⁴ rad

Explanation:

To find the angle we need to use the Rayleigh equation:

Where:

θ: is the angular resolution =?

λ: is the wavelength = 5.00 cm

D: is the diameter of the aperture = 305 m

Hence, the angle is:

Therefore, the angle between two just-resolvable wavelength point sources is 2.00x10⁻⁴ radians.

I hope it helps you!

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)

true tan speed = ang vel x radius