For two sound waves `lamda_(1) = 100 cm, lamda_(2) = 110 cm` and velocity of sound is 330 m/s. When `lamda_(1) and lamda_(2)` super impose, the number of beats produced per second is

Two sound waves of wavelengths 50 cm and 51 cm produce 12 beats per second. The velocity of sound is

Two waves of wavelengths 99 cm and 100 cm produce 4 beats per second. Velocity of sound in the medium is

Two waves of wavelengths 99 cm and 100 cm produce 4 beats per second. Velocity of sound in the medium is

lamda_1, lamda_2, lamda_3 are the first 3 lines of balmer series. Find lamda_1//lamda_3

If lamda_(1) and lamda_(2) are the wavelengths of the first members of the Lyman and Paschen series respectively, then lamda_(1):lamda_(2) is

A dye absorbs a photon of wavelength lamda and re-emits the same energy into two photns of wavelength lamda_(1) and lamda_(2) respectively. The wavelength lamda is related to lamda_(1) and lamda_(2) as :