4 ideal linear polarisers are placed in a row with the polarising axis vertical 20° to vertical 55°to vertical and 90°.natural light of intensity I0 incident on the first polarizer. calculate the intensity of light emerging from the last polariser.

High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

Rohit is trying to tune an instrument