Red and blue light are simultaneously passed through a diffraction grating. The first-order maxima for the red light is located 20 cm from middle of the central bright fringe. Where is the first-order maxima for the blue light located

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

conservation of mass

mass before something happens = mass afterwards

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr