Amonochromatic light passes through a narrow slit and forms a diffraction pattern on a screen behind the slit. as the wavelength of the light decreases, the diffraction patterna)spreads out with all the fringes getting wider. b)remains unchangedc)spreads out with all the fringes getting alternately wider and then narrower. d)becomes dimmere)shrinks with all the fringes getting narrower.

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?