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

Click For Summary
SUMMARY

The discussion centers on the formula “sinΘR = 1.22 λ/d,” which relates to resolving power in physics. Users sought clarification on the meaning of the symbols and the impact of dish diameter on resolving power. The conversation highlights the importance of understanding these concepts for effective application in physics. Ultimately, the original poster successfully resolved their query after engaging with the community.

PREREQUISITES
  • Understanding of basic physics concepts, particularly optics.
  • Familiarity with the term "resolving power" in the context of telescopes or antennas.
  • Knowledge of the symbols used in the formula, specifically wavelength (λ) and diameter (d).
  • Basic mathematical skills to interpret trigonometric functions.
NEXT STEPS
  • Research the concept of "resolving power" in optical systems.
  • Explore the implications of dish diameter on signal clarity in radio telescopes.
  • Learn about the applications of the formula “sinΘR = 1.22 λ/d” in real-world scenarios.
  • Investigate trigonometric functions and their relevance in physics equations.
USEFUL FOR

Students of physics, educators explaining optics, and anyone interested in the practical applications of resolving power in telescopes and antennas.

hidemi
Messages
206
Reaction score
36
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.
 
Physics news on Phys.org
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!
 
Last edited:
Steve4Physics said:
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.
 

Similar threads

Mass on a spring from equilibrium
  • · Replies 1 ·
Replies
1
Views
1K
Sources for Physics Research Paper on Rotational Blade Motion on Helicopter
  • · Replies 4 ·
Replies
4
Views
547
Velocity Formulas for Projectile Motion
  • · Replies 10 ·
Replies
10
Views
3K
Definition of a non-polar molecule
  • · Replies 7 ·
Replies
7
Views
1K
Pressure at bottom of three differently shaped cylinders
  • · Replies 9 ·
Replies
9
Views
2K
Suvat vector versus the scalar form
  • · Replies 44 ·
2
Replies
44
Views
4K
An interesting GCSE question: Why are electric lamps connected in parallel in house wiring?
  • · Replies 14 ·
Replies
14
Views
702
(Magnetism) Magnetic pull force on a steel ball
  • · Replies 4 ·
Replies
4
Views
3K
Critical frequency of Faraday Waves?
  • · Replies 6 ·
Replies
6
Views
1K
Graduate Need help with Rodrigues formula example in Riley, Hobson, Bence - Mathematical Methods for Physics and Engineering 3rd edition
  • · Replies 4 ·
Replies
4
Views
2K