Avantika

If you run away from a plane mirror at 2.35m/s , at what speed does your image move away from you?

A diffraction grating has 5540lines/cm . When a beam of monochromatic light goes through it, the second pair of bright spots occurs at ±26.0cm from the central spot on a screen that is 42.5cm past the grating. To see if the 'small angle approximation' is...

Two small stereo speakers A and B that are 1.40m apart are sending out sound of wavelength 33.5cm in all directions and all in phase. A person at point P starts out equidistant from both speakers and walks (see the figure (Figure 1) ) so that he is always...

Hey even i don't know why :v