How are electric vector E, magnetic vector B and velocity vector c oriented in an electromagnetic wave?
A monochromatic ray of light falls on a regular prism. What is the relation between angle of incidence and angle of emergence in the case of minimum deviation?
State any one advantage of using a reflecting telescope in place of a refracting telescope?
State Moseley's Law?
Moseley's law states that the square root of the frequency of K X-rays varies directly with atomic number.
That is,
Wavelengths of the first lines of the Lyman series, Paschen series and Balmer series in hydrogen spectrum are denoted by respectively. Arrange these wavelengths in increasing order.
What is the significance of binding energy per nucleon of a nucleus of a radioactive element?