What physical quantity is the same for X-rays of wavelength `10^-10` m, red light of wavelength `6800 overset @A` and radiowaves of wavelength 500 m?

What physical quantity is same of X-ray of wavelength 10^-10 m , red light of wavelength 670 nm and radio waves of wavelength 490 m?

Name the physical quantity,which remains same for microwaves of wavelength 1 mm and UV radiaations of 1,600 overset@A in vacuum.

What is the ratio of velocities of light rays of wavelength 5,000 overset @ A and 7,000 overset @A in vacuum?

The fringe width in a Young.s double slit interference pattern is 2.4 xx 10^(-4) m, when red light of wavelength 6400 overset@A is used. By how much will it change,if blue light of wavelength 4000 overset@A is used?

The fringe width in a Young's double slit inter pattern is 2.4 xx 10^(-4)m ,when a red ligth of wavelength 6,400 overset @A is used.By how much will it change,if blue ligth of wavelength 4,000 overset@A is used?

What is range of wavelength for visisble light?

Calculate the work function of a metal in eV, if its thresold wavelength 6800 overset@A and h=6.62 xx 10^(-27) ergs.

Which of the following has shortest wavelength Radio waves, red light, Ultraviolet rays ?

Name the part of the electromagnetic spectrum of wavelength 10^-2 m