What is the minimum escape velocity of rocket to be launched into space
1). 5 Km Sec.
2). 6 Km Sec.
3). 11 Km. Sec.
4). 15 Km. Sec.
1. Which of the following is false?
2. Compressions and Rarefactions are characteristic of
4. The spring balance works on the principle of ________ .
5. Light from the sun reaches us in nearly
6. The energy stored in a watch spring is
7. The commonly used coolant in refrigerators is
8. Which has the lowest albedo?