Arrange the following radiations in increasing order of frequency: (1) radiation from microwave oven (2) amber light from traffic signal (3) radiation from FM radio (4) cosmic ray from outer space (5) X-rays.

Arrange the following radiations in the order of their increasing frequencies- (i) the amber light of traffic signals, (ii) FM radio waves, (iii) X-rays & (iv) Cosmic rays.

Which one of the following electromagnetic radiations has least frequency: UV radiations, X-rays, Microwaves

Arrange the following electromagnetic radiations per quantum in the order of increasing energy: (i) Blue Light (ii) Yellow Light (iii) X-Ray (iv) Radio Wave

Arrange the following waves according to the wavelength in ascending order of their magnitudes: Visible light, Ultraviolet waves, Microwaves, Radio waves, X-rays, Infrared waves, Gamma rays.

Which of the following is the perpendicular distance of the straight line 12x-5y-3=0 from the point (2,-1) ?

Using Bohr's postulates, derive the expression for the frequency of radiation emitted when electron in hydrogen atom undrgoes transition from higher energy state (quantum number n_i ) to the lower state ( n_f ). When electron in hydrogen atom jumps from energy state n_i=4 to n_f=3,2,1 , identify the spectral series to which the emission lines belong.

State which of the following is the total number of relations from set A = {1,2,3} to set B = {4,5} ?