Light in certain cases may be considered as a stream of paerticles called photons. Each photon has a linear momentum `h/lamda` where h is the Planck's constant and `lamda` is the wavelength `lamda` is incident on a plane mirror at an angle of incidene `theta`. Calculate the change in the linear momentum of a photon as the beam is reflected by the mirror.

A photon has an energy where h is the Planck's constant, v is the frequency of radiation, lamda is the wavelength of radiation, and c is the velocity of light.

When a hydrogen atoms emits a photon of energy 12.1 eV , its orbital angular momentum changes by (where h os Planck's constant)

When a hydrogen atoms emits a photon of energy 12.1 eV , its orbital angular momentum changes by (where h os Planck's constant)

If energy of photon is Eproph^(a)c^(b)lamda^(d) . Here h= Planck's constant c= speed of light and lamda= wavelength of photon Then, the value of a,b and d are

If energy of photon is Eproph^(a)c^(b)lamda^(d) . Here h= Planck's constant c= speed of light and lamda= wavelength of photon Then, the value of a,b and d are

According to Planck's quantum theory of light, every source of radiation emits photons (i.e., packets of energy ) which travel in all directions with the same speed (i.e., speed of light). Each photon is of energy E=hv=hc//lambda , where h is Planck's constant, v is the frequency and lambda is wavelength of radiation emitted. The photons emitted from different sources of radiation are different. Read the above passage and answer the following questions: (i) on what factors does the number of photons emitted per second from a source of radiations depends? (ii) Why are the high energy photons not vissible to eye? (iii) Which basic values do you learn from this study?

A parallel beam of monochromatic light of wavelength 663 nm is incident on a totally reflecting plane mirror. The angle of incidence is 60^@ and the number of photons striking the mirror per second is 1.0 xx 10^19 . Calculate the force exerted by the light beam on the mirror.

A parallel beam of monochromatic light of wavelength 663 nm is incident on a totally reflection plane mirror. The angle of incidence is 60^@ and the number of photons striking the mirror per second is 1.0xx10^19 . Calculate the force exerted by the light beam on the mirror.

A parallel beam of monochromatic light of wavelength 663 nm is incident on a totally reflecting plane mirror. The angle of incidence is 60^@ and the number of photons striking the mirror per second is 1.0 xx 10^19 . Calculate the force exerted by the light beam on the mirror.

A parallel beam of monochromatic light of wavelength 663 nm is incident on a totally reflection plane mirror. The angle of incidence is 60^@ and the number of photons striking the mirror per second is 1.0xx10^19 . Calculate the force exerted by the light beam on the mirror.