Define wavelength `(lambda)`.

Write a relation between wavelength (lambda) , frequency (upsilon) and speed of wave (c).

Write the relation between intensity of scattered light (l) and wavelength ( lambda) ?

If the frequency of light wave is ( v ) and its wavelength is ( lambda ), then speed of light c =

What is the relation among speed of wave (v), wavelength ( lambda ) and frequency (f) ?

A hydrogen atom in the ground state is excited by monochromatic ratiation of wavelength lambda Å . The resulting spectrum consists of maximum 15 different lines. What is the wavelength lambda ? (R_H = 109677.8 cm^(-1))

An electrons is moving in Bohr's fourth orbits De-Broglie wavelength s lambda .What is the circumference of the fourth orbit?