A plane monochromatic light wave is incident on a double-slit as illustrated in Figure 24.4. As the slit separation decreases, what happens to the separation between the interference fringes on the screen? (a) It decreases. (b) It increases. (c) It remains the same. (d) It may increase or decrease, depending on the wavelength of the light. (e) More information is required.
Motion simply is the change of a physical body’s position with time. There are 4 fundamental types of motion which are: Linear motionExample, A skateboarder moving along a straight line. Circular motionThis involves motion along a circular trail. Example, walking round a circular fountain. Projectile motionIt involves launching an object in air and the then it coming back down due to the law gravity. It always forms a curved path. Example, shotput, javelin or shooting an arrow in the air Rotational motion: it involves motion of a stiff body rotating about its axis. Example, a ball spinning on the ground about its axis. The first three motion listed above are all called translational motion. This is because they mov