Mnemonics Flashcards
1
Q
When the temperature of an object changes, its lengths change a lot.
A
αLΔT
2
Q
sign convention in doppler equation
A
Top sign for Towards
Bottom sign for away
2
Q
nodes vs antinodes
A
nodes are plaed of no displacement
3
Q
colors in the visible spectrum
A
ROY G. BV
Red, orange, yellow, green, Blue, Violet.
4
Q
Image types with a single lens or mirror, assuming always positive: UV NO IR
A
1) Upright images are always virtual.
2) No image is formed when the object is a focal length away.
3) Inverted images are always real.
