Explanation:

Statement 1 is correct: Cherenkov radiation occurs when charged particles like electrons are moving faster than the speed of light in a dielectric medium. A shock wave is generated in much the same way as the more familiar sonic boom created by supersonic airplanes. The shock wave is in the form of light rather than sound, seen as a flash of blue light for a single particle, and as a faint glow for a continuous flow of particles. Statement 2 is not correct: Recently, researchers have successfully developed a cost-effective method to detect cancer using Cherenkov radiation. The research team developed a Cherenkov luminescence imaging (CLI) procedure where charged particles released by the system cause the target tissue (the tumour) to vibrate and stop vibrating in such a way that they emit light which can be captured by a camera. The cost-effectiveness of the device means that it can be deployed to medical centres that couldn’t previously afford nuclear imaging technology, as a stopgap tool for the early detection of tumours. After early detection, patients could then be sent to other centres which have PET/CT scanning facilities for more precise imaging. Cerenkov radiation can be used to facilitate the detection of low concentrations of biomolecules. Enzymatic and synthetic methods are used to introduce radioactive atoms. The Cerenkov effect allows researchers to detect these at low concentrations. This method is used to study biological pathways and to characterize the interaction of biological molecules."