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