The physical phenomenon that mri is based on does not depend on ionizing radiation, but on other properties of atoms instead. what is this phenomenon called? gamma-ray bursts positron emission x-ray propagation nuclear magnetic resonance

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?