Draw a diagram illustrates the Brewster's Angle, and explain the physic concept

Please solve and answer the question correctly please. Be sure to give the correct units and answers. Thank you!!

The beam from a laser is focused with a lens, reducing the area of the beam by a factor of 2. By what factor does the amplitude of the electric field increase?A. The amplitude does not change.B. The amplitude increases by a factor of √2.C. The amplitude increases by a factor of 2.D. The amplitude increases by a factor of 2√2.E. The amplitude increases by a factor of 4.

A 160 MW laser pulse is focused with a lens to a diameter of 2.2 μm . What is the laser beam's electric field amplitude at the focal point? What is the ratio of this electric field to the electric field that keeps the electron bound to the proton of a hydrogen atom? The radius of the electron's orbit is 0.053 nm .

Physics Polarization: Write down the equations of an unpolarized E field before it hits a linear polarizer that is polarized in the x-direction. What are the E field equations after the linear polarization? I'm having extreme difficulty on this problem, need some guidance.

Explain the concept of fiber optics as a transmission medium. Discuss its advantages over traditional copper cables and its applications in high-speed data transmission.

Question:  Compare your two screenshots and explain what you see in terms of superpositioning.

1. You look at a light source through a polarizer. As you turn the polarizer you see no change in intensity. Is the light emitted by this source polarized?

can you please help

Fill the blank spaces for the list of properties of the Electromagnetic waves and EM spectrum: 1) In EM waves, E , B and the wave direction are mutually 2) EM waves travel through space, carry and transfer * to the objects. 3) In electromagnetic spectrum, * have the lowest wavelength. 4) Of the seven different EM waves, + lis used for security purposes.