Monochromatic light of wavelength 687 nm is incident on a narrow slit. on a screen 1.65 m away, the distance between the second diffraction minimum and the central maximum is 2.09 cm. (a) calculate the angle of diffraction θ of the second minimum. (b) find the width of the slit. explain with your solution

Which of the following represents an upside-down image? o a. +doo b. -doo c. +mo d.-m

Assuming weightless pulleys and 100% efficiency, what is the minimum input force required to lift a 120 n weight using a single fixed pulley?

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?