1.
(2023·杭州模拟)
用如图甲所示实验装置研究光电效应的规律,得到如图乙所示的实验数据,由此可知( )
![](//tikupic.21cnjy.com/2023/05/12/b3/36/b336098c9121a40ddb6951bd572d8bca_304x371.png)
光的颜色 | 绿色 | 紫色 |
光的波长![](//math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3E%CE%BB%3C%2Fmtext%3E%3Cmn%3E%2F%3C%2Fmn%3E%3Cmi%3En%3C%2Fmi%3E%3Cmi%3Em%3C%2Fmi%3E%3C%2Fmath%3E) | 546 | 410 |
强度较低 | 强度较高 |
反向电压U/V | 光电流![](//math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmi%3EI%3C%2Fmi%3E%3Cmn%3E%2F%3C%2Fmn%3E%3Cmtext%3E%CE%BC%3C%2Fmtext%3E%3Cmi%3EA%3C%2Fmi%3E%3C%2Fmath%3E) | 光电流![](//math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmi%3EI%3C%2Fmi%3E%3Cmn%3E%2F%3C%2Fmn%3E%3Cmtext%3E%CE%BC%3C%2Fmtext%3E%3Cmi%3EA%3C%2Fmi%3E%3C%2Fmath%3E) | 光电流![](//math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmi%3EI%3C%2Fmi%3E%3Cmn%3E%2F%3C%2Fmn%3E%3Cmtext%3E%CE%BC%3C%2Fmtext%3E%3Cmi%3EA%3C%2Fmi%3E%3C%2Fmath%3E) |
0.00 | 10.4 | 8.5 | 14.8 |
0.02 | 4.0 | 6.7 | 11.9 |
0.04 | 0.0 | 4.8 | 8.9 |
0.06 | 0.0 | 3.0 | 6.0 |
乙
A . 单位时间逸出的电子数与入射光的强度有关
B . 用绿光实验时,遏止电压一定是0.04V
C . 用强度较高紫光实验时,饱和电流大小为14.8μA
D . 不同颜色的光照射时,材料的逸出功不同