forces exist between objects that are not in contact with each other. Regular

Field

Contact

Normal

J. j. thomson’s experiment disproved the theory that an atom

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

Decreased sensitivity to an unchanging stimulus is known as