The wavelength of X-Rays is
Longer than those of UV rays and shorter than of gamma rays
Shorter than those of UV rays and longer than of gamma rays
Equal to those of UV rays and gamma rays
Cannot be compared
Roentgen discovered
α - Rays
β - Rays
γ- Rays
X- Rays
X-Rays are similar to
Light waves
Sound waves
Electromagnetic waves
Radio waves
Cathode rays are produced, when
Pressure inside the discharge tube is nearly 0.01 mm of Hg
Pressure inside the discharge tube is nearly 1 mm of Hg
Pressure inside the discharge tube is nearly 5 mm of Hg
Pressure inside the discharge tube is nearly 11 mm of Hg
The cathode rays have sufficient amount of
Potential energy
Kinetic energy
Electrical energy
Gravitational energy
A discharge tube is useful in the study of
Conduction of electricity through solids
Conduction of electricity through liquids
Conduction of electricity through gases
Conduction of electricity through plastic
The branch of physics that deals with the study of light and its properties is called
Optics
Mechanics
Dynamics
Electronics
The cathode rays are deflected by a magnetic field. This shows that
Cathode rays consist of electrodes
Cathode rays consist of water vapor
Cathode rays consist of electricity
Cathode rays consist of particles
When cathode rays strike on heavy solid metals, they produce
The branch of physics, concerned with the behavior of physical bodies
Relativity
