Indicate True (T) and False (F) Statements Below Regarding Light

Short Answer

Indicate true (T) and false (F) statements below regarding light and light microscopy. Your answer would be a four-letter string composed of letters T and F only, e.g. FFFF.
( ) Two light waves of the same amplitude and frequency will completely cancel each other out if not perfectly in phase.
( ) If the refractive index of a medium is 1.1, light travels in a vacuum 1.1 times faster than it does in the medium.
( ) The limit of resolution for conventional light microscopy is approximately 0.4 µm, corresponding to the wavelength of violet light.
( ) A light-emitting particle can be detected with a light microscope even if it is several times smaller than the resolution limit of the microscope.