Explaining a Physics Formula in Non-Physics Terms: Answer B

[hidemi]

Homework Statement

If the diameter of a radar dish is doubled, what happens to its resolving power assuming that all other factors remain unchanged?

A) The resolving power quadruples.
B) The resolving power doubles.
C) The resolving power is reduced to 1/2 of its original value.
D) The resolving power is reduced to 1/4 of its original value.
E) The resolving power does not change unless the focal length changes.

The answer is B.

Relevant Equations

sinΘR = 1.22 λ/d

According to the equation, the answer is B.
Since the lecture didn't cover much about it, can someone explain this formula in a less physics way? Thanks.

 

[Steve4Physics]

What have you done so far? E.g what have you found out ?
What is meant by resolving power?
Why will the dish’s diameter affect the resolving power?
What do the symbols in the formula “sinΘR = 1.22 λ/d” mean?

Edit. And asking for an explanation 'in a less physics way' may not be the best tactics in a forum dedicated to physics!

 

[hidemi]

What have you done so far? E.g what have you found out ?
What is meant by resolving power?
Why will the dish’s diameter affect the resolving power?
What do the symbols in the formula “sinΘR = 1.22 λ/d” mean?

Edit. And asking for an explanation 'in a less physics way' may not be the best tactics in a forum dedicated to physics!

Thanks for your hints. I have solved it.