طبعی بصریات

Interference of light provides evidence that light behaves as a:

• 1 Wave
• 2 Particle
• 3 Neutral object
• 4 Sound

In Young's double slit experiment, the fringe spacing is proportional to:

• 1 Wavelength
• 2 Intensity
• 3 1 / wavelength
• 4 Slit width only

Polarisation shows that light waves are:

• 1 Transverse
• 2 Sound like
• 3 Longitudinal
• 4 Neutral

A diffraction grating has 5000 lines per cm. The grating spacing is:

• 1 5 x 10^-3 m
• 2 2 x 10^-6 m
• 3 5 x 10^-6 m
• 4 2 x 10^-4 m

Newton's rings are produced by:

• 1 Polarisation
• 2 Dispersion
• 3 Reflection only
• 4 Thin film interference