(a) unpolarised light of intensity io is incident on a linear po- lariser sheet. light emerging from this sheet falls other sheet, which has its transmission axis at right angles to that of the first sheet. (i) what fraction of the incident light emerges from the second sheet? (ii) what happens to the rest of the light? (iii) leaving these two sheets untouched, and using two (2) additional linear polarisers, how could the system be modified so that the emergent intensity is increased? use a diagram to show the arrangement (iv) what is the maximum fraction of io that can now be transmitted through the system? you do not have to prove your answer is correct

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.