Tripling the distance from an observer to a point source of light waves will cause the intensity observed to change by what factor? (That is, Inew = (factor) x Iold] O a. 3 Ob.V3 O. 1/3 O d.9 O e. 19
Angular speed, acceleration and displacement
Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.
Angular Position
Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.
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Introduction:
The intensity of the light wave defines the power of the source per unit area at a certain distance, and the unit of the intensity of the source is W/m2.
The intensity of the light is inversely proportional to the square of the distance of the point from the light source and directly proportional to the power of the light source.
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