Particle nature and wave nature of electromagnetic waves and electrons can be shown by
Electron has small mass, deflected by the metal sheet
$X-$ ray is diffracted, reflected by thick metal sheet
Light is refracted and defracted
Photoelectricity and electron microscopy
When subjected to a transverse electric field, cathode rays move
An electron is accelerated through a potential difference of $1000$ volts. Its velocity is nearly
Positive rays consists of
In Thomson's experiment if the value of $q/m$ is the same for all positive ions striking the photographic plate, then the trace would be
What is value (magnitude) of electric field required for field emission ?