A 160 watt light source is radiating light of wavelength 6200 Å uniformly in all directions. The photon flux at a distance of 1.8 m is of the order of (Planck's constant `6.63xx 10^(-34) J-s)`

A 160 watt light source is radiating light of wavelength 6200 Å uniformly in all directions. The photon flux at a distance of 1.8 m is of the order of (Plank's constant 6.62 xx 10^(-34) J-s )

A 160 watt light source is radiating light of wavelength 6200 Å uniformly in all directions. The photon flux at a distance of 1.8 m is of the order of (Plank's constant 6.62 xx 10^(-34) J-s )

A 160 watt infrared source is radiating light of wavelength 50000Å uniformly in all directions. The photon flux at a distance of 1.18 m is of the order of -

Give the order of the following : Planck's constant ( 6.63xx10^(-34) J-s)

A 100 W point source emits monochromatic light of wavelength 6000 A Q. Calculate the photon flux (in SI unit) at a distance of 5m from the source. Given h=6.6xx10^(34) J s and c=3xx10^(8)ms^(-1)

A 100 W point source emits monochromatic light of wavelength 6000 A Q. Calculate the photon flux (in SI unit) at a distance of 5m from the source. Given h=6.6xx10^(34) J s and c=3xx10^(8)ms^(-1)

A 100 W sodium lamp is radiating light of wavelength 5890A , uniformly in all directions, a. At what rate, photons are emitted from the lamp? b. At what distance from the lamp, the average flux is 1 photon( cm^2-s)^-1? c. What are the photon flux and photon density at 2m from the lamp?

A 100 W sodium lamp is radiating light of wavelength 5890A , uniformly in all directions, a. At what rate, photons are emitted from the lamp? b. At what distance from the lamp, the average flux is 1 photon( cm^2-s)^-1? c. What are the photon flux and photon density at 2m from the lamp?

The de Broglie wavelength of a tennis ball of mass 60g moving with a velocity of 10 ms^(-1) is approximate [Planck's constant = 6.63 xx 10^(-34) J s ]

For photoelectric emission, threshold wavelength of a metal is 2460 Å . If ultraviolet light of wavelength 1810 Å be incident on the metal, what will be the maximum kinetic energy of the emitted electrons? [Planck's constant = 6.62xx10^(-34) J.s , velocity of light in veccuum = 3xx10^(8) m.s^(-1) ]