If you consider collimated red light from a hydrogen discharge lamp falls perpendicularly on to a transmission grating, you can compute the number of lines/cm the grating must have for the red(656.2816 nm)line produced in the second order maximum at an angle of 42ofrom the central axis. Where in terms of angular location from the central axis does the blue(486.1327 nm)line in the third order maximum occur

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.