An Astronomical Telescope Is Made with Lenses of Focal Lengths

question 51

Multiple Choice

An astronomical telescope is made with lenses of focal lengths 80.0 cm and 2.00 cm. Two stars in the sky are separated by 0.080°. What angle of separation do they have when viewed in the telescope?

• A) 40°
• B) 6.4°
• C) 3.2°
• D) 1.6°
• E) 0.080°

---

Definitions:

Preexisting Duty Rule

In contract law, a principle that states if someone is already legally required to perform a certain duty, promising to perform that duty is not sufficient consideration for a new contract.

Consideration

The value (such as money, services, or goods) promised in a contract that motivates parties to enter into the agreement.

Ethical

Related to moral principles or the branch of knowledge dealing with these.

Liquidated Debt

A debt where the amount owed is known and determined, not subject to future conditions.