general science general questions 11 years ago pooja 1 minute 21. Which of the following rays are more penetrating? A. Beta rays B. Alpha rays C. Gamma rays D. X-rays Answer & Explanation Answer: Option C Explanation: No answer description available for this question. Let us discuss. View Answer Workspace Report Discuss in Forum 22. How many colours the sunlight spectrum has? A. Three B. Seven C. Four D. Five Answer & Explanation Answer: Option B Explanation: No answer description available for this question Related