Wave Optics Practice
10 problems · instant feedback · full explanations
Wave optics treats light as a wave: slits diffract, films interfere, gratings split colors. Path differences in wavelengths decide everything.
Q1.
Waves spreading as they pass through a narrow opening is:
Multiple choice · Easy
Q2.
Light (λ=500 nm) through a 0.1 mm slit: where is the first minimum? (degrees)
Numerical answer (°) · Medium
Q3.
The diffraction grating equation is:
Multiple choice · Medium
Q4.
A soap film (n=1.33) glows green (λ=500 nm) in reflection. Minimum thickness? (nm)
Numerical answer (nm) · Hard
Q5.
Polarized sunglasses cut glare because:
Multiple choice · Easy
Q6.
A 0.1 m telescope at λ=550 nm: angular resolution? (radians)
Numerical answer (rad) · Hard
Q7.
Huygens' principle treats every point on a wavefront as a source of secondary wavelets.
True / False · Easy
Q8.
Any two light sources can produce a stable interference pattern.
True / False · Medium
Q9.
A CD player reads data using:
Multiple choice · Medium
Q10.
Which color gives the sharpest image resolution for the same aperture?
Multiple choice · Hard