ánh sáng đi qua nước có chiết suất 1,33 và đập trên một thủy tinh có chiết suất 1,53. Góc tới là bao nhiêu để cho ánh sáng phản xạ phân cực hoàn toàn

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

What is the measure of a change in an objects velocity?