**Modern Physics** Resource Packet
(comments to: moloney@nextwork.rose-hulman.edu)

Suggestions for 'Active' Classroom Learning

**The light from object A in the sky has a peak wavelength of 35000
nm. The light from object B in the sky has a peak wavelength of 40000 nm.
This tells us that**

**a) object A is brighter than object B
b) object A is dimmer than object B
c) object A is closer than object B
d) object A is farther away than object B
e) object A is hotter than object B
f) object A is colder than object B**

**What brand-new result came from Planck's analysis of blackbody radiation**

**a) E = frequency * wavelength
b) E = sqrt( (moc^2)^2+(pc)^2)
c) E = constant * frequency
d) E = mc^2
e) none of the above**

**What brand-new result came from Einstein's special theory of relativity
a) E = frequency * wavelength
b) E = sqrt( (moc^2)^2+(pc)^2)
c) E = constant * frequency
d) E = mc^2
e) none of the above
f) d) and b)**

**In deriving the equation for the
compton wavelength shift**

**there was a collision between a**

a) moving photon and stationary electron

b) moving electron and stationary electron

c) a moving electron and a stationary photon

d) a moving photon and a stationary photon

e) two moving electrons

f) two moving photons

**what quantities were the same before and after the collision**

a) kinetic energy

b) linear momentum

c) relativistic energy

d) kinetic energy and linear momentum

e) relavistic energy and linear momentum

f) none of the above**what happens in a collision when theta =0?****what happens in a collision when theta=180 degrees?**

**A beam of electrons strikes a crystal and the outgoing beam is very
intense at angle theta.**

**A beam of photons also strikes the same crystal at the same incoming
and outgoing angles, and the outgoing beam is intense at the same angle
theta.**

**The electrons and photons must have the same initial
a) linear momentum
b) energy
c) wavelength
d) work function
e) energy and linear momentum
f) wavelength and linear momentum**

**Bohr**

**Atomic orbitals**

**Tunneling exercise from CUPS
modern physics**

**Uncertainty exercise from CUPS
modern physics**

**Relativity**

**Geiger tube counting and poisson
statistics from CUPS Modern Physics**