How wide is the central diffraction peak on a screen 3.5 m behind 0.010 mm slit illuminated by 500 mm
light? (Ans: 0.35 m
[3]answer

just put in mind that others aren't perfect. we all have problems that we feel makes us low of the low. but know that you are special and unique, that is what makes you out of this world : ). you might think and feel that others judge you, but mostly other people are scared if people judge them. just be happy, spend time with family, smile because that is the greatest medicine. a happy life. hope this : ))