The intensity at the center of a single – slit diffraction pattern is 0. What is the intensity at a point in the pattern where there is a 68.0 radian phase difference between wavelets from the two edges of the slit? (b) If this point is 9. 00° away from the central maximum, how many wavelengths is the slit wide?

The extremely high temperatures needed to trigger nuclear fusion are proposed to be generated by laser irradiating a spherical pellet of deuterium and tritium fuel of diameter 1.8 mm. (a) determine the maximum fuel temperature that can be achieved by irradiating the pellet with 200 lasers, each producing a power of 550 w. the pellet has an absorptivity 0.3 and emissivity 0.8.

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?