The treatment of malignant cancers uses
X-Rays
Alpha Rays
Beta Rays
Gamma Rays
Roentgen discovered
α - Rays
β - Rays
γ- Rays
X- Rays
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
When cathode rays strike on heavy solid metals, they produce
X-Rays donot show
Refraction
Rectilinear propagation
Ionisation
Penetration
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
Experiments on cathode rays is most accredited to
Michel faraday
J.J. Thomson
Einstein
John Dalton
X - Rays are deviated by a magnetic field or electric fields
True
False
True under special conditions
Cannot be determined
Cathode rays are made up of fast moving
Electrons
Protons
Nutrons
Atoms
The branch of physics that deals with the study of light and its properties is called
Optics
Mechanics
Dynamics
Electronics
