WorksheetsOptics Assessment
Total questions: 16
Worksheet time: 4mins
Which wave has the highest frequency?
1
2
3
4
What happens if you increase the frequency?
The amplitude will increase
The amplitude will decrease
The wavelength will get longer
The wavelength will get shorter
Two wavefronts cross each other.
TRUE
FALSE
Which EM wave has the longest wavelength?
light
radio
ultraviolet
red
What is the phase difference between two points on a wavefront?
π
2π
0
none of these
Ordinary white light includes all visible wavelength
TRUE
FALSE
When light is transmitted from one material to another, the ______________ of the light is
unchanged, but the ______________ and wave _____________ can change.
speed, frequency and wavelength
wavelength and speed
frequency only
frequency, wavelength and speed
The speed of a wave is _____________________ to the index of refraction.
Directly proportional
Not affected
Inversely Proportional
equal
(a) intereference is a type of interference that occurs at any location along the medium where the
two interfering waves have a displacement in the same direction.
When the light from slit 1 and that from slit 2 both arrive at a point on the screen such that constructive interference occurs at that location, a __________ appears.
bright fringe
dark fringe
As the wavefront coming out from slits, they can form constructive interference as long as they are 1 or 2 whole wavelengths increment or in phase from each other.
True
False
The center fringe created by a light wave coming from a slit, is called :
0th fringe
1st fringe
separation distance
The "path difference" is the difference in the lenth of rays of which the wave travels. It is δ = r2 − r1 or
mλ
d sin θ
both a and b
none of these
A light source emits visible light of two wavelengths: λ = 430 nm and λ’ = 510 nm. The source
is used in a double slit interference experiment in which L = 1.50 m and d= 0.025 mm. Find
the separation distance in cm between the third-order bright fringes.
(a)
These are the types of polarization of lightwave except:
circular
elliptical
linear
helical
Diffraction is observed of light waves but only when the waves encounter obstacles with extremely small wavelengths
TRUE
FALSE
