True or false: the rems of a particular type of radiation is influenced by the q value of the radiation and the rads of the radiation.

Ajoint produces movement when its angle decreases. which type of movement is it?

What is an electric motor? explain its operation. 2-3 sentence

The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?