The radioactive isotope of hydrogen is called
deuterium
protium
radium
tritium
D.
tritium
Hydrogen has three main isotopes, there is protium (1H) deuterium (2H), and tritium (3H). Protium and deuterium are stable while tritium is radioactive and has a half-life of about 12 years.
Slope of the velocity-time graph gives the
distance covered by a moving body
velocity of a moving body
acceleration of a moving body
None of the above
Force can be defined on the basis of
Newton's second law of motion
Newton's first law of motion
Newton's third law of motion
Newton's law of gravitation
Emission of which one of the following will produce isobars?
Alpha particles
Beta particles
Gamma rays
X-rays
Which one of the following phenomena cannot be attributed to the refraction of light?
Twinkling of stars
Mirage
Rainbow
Redshift
Vapour pressure of liquid depends upon the
quantity of heat
temperature of liquid
specific heat of liquid
density of liquid