In a longitudinal wave, the oscillations are:

Parallel to the direction of travel

For two sources to give a stable interference pattern, they must be:

Coherent, with a constant phase difference

Greater than the critical angle

The speed of light in a vacuum divided by the speed in the medium

The number of electrons emitted per second

The minimum energy needed to release an electron from the surface

They are absorbed more by dense bone than by soft tissue, giving contrast

Gamma emitter with a short half-life

12questions. Pick an answer and you'll see why right away.

In a longitudinal wave, the oscillations are:
If the amplitude of a wave is doubled, its intensity is:
Which property can only transverse waves show?
For two sources to give a stable interference pattern, they must be:
Adjacent nodes on a stationary wave are separated by:
Light passes from glass into air and is totally internally reflected. This happens when the angle of incidence is:
The refractive index of a medium is defined as:
Increasing the intensity of light above the threshold frequency increases:
In Einstein's photoelectric equation, the work function is:
What does electron diffraction provide evidence for?
Why are X-rays useful for imaging bone?
A good radioactive tracer for diagnosis should be a: