Question 1: Two slits 12-mm apart, 7 meters from the screen. If produced the second-order bright line 1-mm from the center of the pattern, what is the wavelength of the light used?
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the screen is not coming up with suitable verbs from other passengers on board with water etc and the blank bhej do please please please please karne ke liye kuch bhi nahi payega Predator tum
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