The wavelength range of the visisble spectrum extends from violet (400 nm) to red (750 nm). Express these wavelengths in frequencies (Hz) (1nm=`10^(-9)m`).

Wavelength of a particular transition of H atom is 400 nm. What an be the wavelength of He^(+) for the same transition-

The wavelength of second Balmer line in Hydrogen spectrum is 600 nm. The wavelength for its third line in Lymann series is

The wavelength of each of a photon and an electron is 1.00 nm. Find their (a) momentum and (b) energy.

The frequency of X-ray of wavelength 1 overset@A is (1 overset@A = 10^(-10)m)

Calculate the energy of 1 Millimole of photon having wavelength 405nm

Audible range of frequencies is 20 Hz to 20,000 Hz. Find the range of wavelengths corresponding to this frequency. Given. Velocity of sound =340 m//s.

Using light of wavelength 600 mm in Young's double slit experiment 12 bands are found on one part of the screen. If the wavelength of light is changed to 400 nm , then what will be the number of bands on that part of the screen?

In Young's double slit experiment the coherent sources are 1.5 mm apart and the fringes are obtained on a screen at a distance 2.5 m from the plane of the sources. If the sources is illuminated with a light of 589.3 nm wavelength , find the number of fringes in the interference pattern thus formed on the screen. Total length of the fringes are 4.9 xx 10 ^(-3) m.