MCAT Question of the Day
    •

    Q:

    		 A light source at a point P emits radiation in all directions evenly. Two objects sit a distance of r1 and r2 away from P where r2 > r1. The change in the amount of radiation received between r1 and r2 is directly proportional to:
    		 

    A

    		 (r2-r1)2

    B

    		 r2-r1

    C

    		 the change in surface area of spheres drawn with radii r1 and r2

    D

    		 the change in volume of spheres drawn with radii r1 and r2



    Electromagnetics |
    Subscribe


    Is Your Score Stuck?

    We can teach you how to crush the MCAT!

    Learn More