A radiation has a frequency of '6 xx 10^(14)' cycles per second (or 'Hz' ). Calculate the wavelength of the radiation in nanometers '(ln m=10^(-9)m)'

Calculate the energy of a radiation having a wavelength of '4000 A (h=6.6 xx 10^(-34)) J s)'

Calculate the capacitance of earth, taking its radius to be 6.37 xx 10^(6)m

Based on his alpha - ray scattering experiment, Rutherford proposed the nuclear model of an atom. The threshold frequency v0 for a metal is 6.2xx10^14s^(-1) . Calculate the K.E. emitted for an electron when the radiation of frequency v=8.7xx10^14s^(-1) strikes the metal.

The threshold frequency V_0 for a metal is 7.0xx10^14 s^1 . Calculate the kinetic energy of an electron emitted when radiation of frequency v=1.0xx10^15s^(-1) hits the metal.

Calculate the wavelength, frequency and wave riumber of a light wave whose period is '2.0 xx 10^(-10) s'

Nitrogen laser produces a radiation at a wavelength of 337.1 nm. If the number of photons emitted is 5.6 xx 10^(24) per second, calculate the power of this laser.

A photon with initial frequency 10^(11) Hz scatters off electron at rest. Its final frequency is 0.9 xx 10^(11) Hz. The speed of scattered electron is close to: (h = 6.63 xx 10^(-34) Js. M_(e) = 9.1xx10^(-31) kg)

Calculate the energy of 1 mole of photons whose frequency is 6.0xx10^(14) Hz.

The photon has a momentum as well as a wavelength . A photon has a mass of 8.6 xx 10^(-30) kg. Calculate the wavelength. [Plank's constant, h = 6.626 xx 10^(-34) Js]