Nature of Light

Question 1

Wavelength

Answer 1

(lambda) - the distance between identical points on successive waves

Question 2

Frequency

Answer 2

(nu) - the number of waves that pass through a particular point in 1 second

Question 3

Constructive interference

Answer 3

result of adding waves that are in phase

Question 4

Destructive interference

Answer 4

result of adding waves that are out of phase

Question 5

Speed of Light

Answer 5

c = 3.00e8

Question 6

c, lambda, nu formula

Answer 6

c = lambda x nu
- lambda in meters
- nu in reciprocal seconds

Question 7

Max Planck

Answer 7

suggested that radiant energy is only emitted or absorbed in discrete quantities or bundles

Question 8

a quantum of energy…

Answer 8

is the smallest quantity of energy that can be emitted or absorbed

Question 9

quantum theory formula

Answer 9

E = hv
- h = Planck’s constant
- v = nu

Question 10

Planck’s Constant

Answer 10

6.63e-34

Question 11

Photoelectric effect

Answer 11

electrons are ejected from the surface of a metal exposed to light of a certain threshold frequency

Question 12

Einstein proposed that…

Answer 12

light is a stream of particles called photons