1. Intro to Physics Units

What is the ideal distance between an x-ray tube and an x-ray cassette in standard radiographic procedures?

Which of the following is the correct SI unit for $Work$?

X rays with an initial wavelength of $0.900\times {10}^{-10}$ m undergo Compton scattering. For what scattering angle is the wavelength of the scattered x rays greater by $1.0\%$ than that of the incident x rays?

Suppose a piece of very pure germanium is to be used as a light detector by observing, through the absorption of photons, the increase in conductivity resulting from generation of electron–hole pairs. If each pair requires $0.67$ eV of energy, what is the maximum wavelength that can be detected? In what portion of the spectrum does it lie?

Which physical quantity is measured using an $ammeter$?

Which of the following is the SI unit of $frequency$?

Which of the following best defines an astronomical unit ($au$)?

Consider an electron in the $N$ shell. What is the largest orbital angular momentum this electron could have in any chosen direction? Express your answers in terms of $\hslash$ and in SI units.

When a circuit diagram shows components as symbols, it is called a(n) what type of drawing?

Which of the following is the SI unit for momentum?

Sirius is one of the brightest stars visible from Earth. Approximately how far away is Sirius from Earth in $AU$ (astronomical units)?

What are the rest energy, the kinetic energy, and the total energy of a 1.0 g particle with a speed of 0.80c?