In order to rotate the polarization axis of a beam of linearly polarized light by 90.0° , a student places sheets p1 and p2 with their transmission axes at 45.0° and 90.0° , respectively, to the beam’s axis of polarization.
(a) what fraction of the incident light passes through p1
(b) through the combination?
(c) repeat your calculations for part (b) for transmission-axis angles of 30.0° and 90.0°, respectively.

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

did yall get answers for this yet