Which is the coldest planet?
1). Uranus
2). Venus
3). Neptune
4). Jupiter
3. It is easier to roll a stone up a sloping road than to lift it vertical upwards because
4. Which of the following is an example for cantilever beam
7. In an optical fibre the signal is transmitted
8. Fish and other aquatic creatures can live inside a deep frozen pond because
9. For Gamma radiation, what stops its penetrating abilities?
10. Which electromagnetic radiation is used for satellite communication ?