Question

s Question Completion Status: O 1500 Hz. QUESTION 12 points Save Answ The change in the frequency of a wave due to the motion of the source (or observer) is known as O the Doppler effect. O diffraction. the Mach effect. O the Bell effect. O interference. 1 points Save Answe QUESTION 13 An object is placed a distance d in front of a plane mirror. The size of the image will be O half as big as the size of the object. O dependent on where you are positioned when you look at the image O dependent on the distance d O the same size as the object, independent of the distance d or the position of the observer O twice the size of the object. Save and save ond suomits Ciok Save All ansuers to save allansuers

Answer 1

$rmury 여anake 'ThL Change in So oill be 13