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How are electric vector E, magnetic vector B and velocity vector c oriented in an electromagnetic wave?

State two methods by which ordinary light can be polarised?

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?

What type of lens is used to correct long-sightedness?

State any one advantage of using a reflecting telescope in place of a refracting telescope?

State Moseley's Law?

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?

Write any one balanced equation representing nuclear fission.

What is the difference between analogue signal and digital signal?