【简答题】通过偏振片观看部分偏振光,若偏振片由对应于极大强度的位置转过60°时,透射光强减为1/2,则部分偏振光的偏振度为______.
【简答题】Americans have elected Donald J. 1 as the 45th President of the United States. The 2 Party 3 defeated the 4 Party nominee, Hillary Clinton. The result is a 5 to most political experts and 6 . On Tuesd...
【简答题】一束部分偏振光由光强比为2:8的线偏振光和自然光组成,求这束部分偏振光的偏振度.
【单选题】用一块偏振片分别观察自然光,线偏振光,部分偏振光,圆偏振光,和椭圆偏振光,当偏振光的传播方向旋转一周时,发现光强度不变,则入射光是( )
【简答题】四川省野生动物资源极其丰富,其中的国家级保护动物哪些有?(列举不少于7种)?
【简答题】Classify the following sentences into the appropriate sentence patterns. 1.Everyone laughed loudly. 2.The president appointed her chairperson of the committee. 3.The police arrested the suspect yester...
【单选题】部分偏振光
A.
在垂直传播方向的平面内各个方向的光振动全有,各个振动方向的强度相等
B.
迎着光看过去,在垂直传播方向的平面内仅有一个方向有光振动
C.
迎着光看过去,在垂直传播方向的平面内各个方向的光振动全有,但显示出某个方向的振动较强些
【简答题】Science fiction movies are very (imagination)___________. l in the blanks with the words given in brackets. Change the form where necessary. 9. Science fi ction movies are very (i Fill in the blanks ...
【简答题】如问题11-22图所示的光路,哪些部分是自然光,哪些部分是偏振光,哪些部分是部分偏振光?试指出偏振光的振动方向。若B为折射率为n的玻璃,周围为空气,则入射角i应遵守怎样的规律?