If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound?
1). 4:01
2). ?1 : 16
3). 2:01
4). 1:04
1. The Instrument used to see the distant objects on the Earth is
2. Speed of light is maximum in _____.
5. When a gas expands adiabactically?
6. When a body is taken from earth to moon
7. One can distinguish a telescope from a microscope by observing
9. Which colour is formed when Red and Green are mixed?
10. A gas thermometer is more sensitive than a liquid thermometer because a gas :