A photon of wavelength 2.0 nm Compton-scatters from an electron at an angle of 90°. What is the modified wavelength? (    )

Money（）as it goes from person to person. A: speaks B: scatters C: circulates D: distribute

It leads to intimacy before acquaintance; it scatters secrets outwards, not inwards; and, most worrying of all, it is a vehicle for liars. __________

A photon having 40 keV scatters from a free electron at rest. What is the maximum energy that the electron can obtain? (  )

After Compton scattering, the scattered x-ray has_______. A: Higher energy B: Higher velocity C: Less mass D: Longer wavelength

As I worked my way through Compton Junior High, my mother focused her considerable energy on getting the high school and college education she had __________.

‏美国的第一个诺贝尔奖获得者是（）‏ A: Albert Abraham Michelson B: Joseph John Thomson C: John William Strutt D: Arthur Holly Compton

美国的第一个诺贝尔奖获得者是（ ） A: Albert Abraham Michelson B: John William Strutt C: Joseph John Thomson D: Arthur Holly Compton

1962年诺贝尔生理学或医学奖获得者包括 A: Francis Harry Compton Crick B: James Dewey Watson C: Maurice Hugh Frederick Wilkins D: Rosalind Franklin

热电转换是指热能和电能之间的相互转换。热电效应不包括 A: 塞贝克 (Seebeck) 效应 B: 康普顿(Compton) 效应 C: 汤姆逊 (Thompson) 效应 D: 珀尔帖 (Peltier) 效应