Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. the energy of one photon of this light

a) 1.04*10^-22

b)1.4*10^-31

c) 2.64*10^18

d) 3.79*10^-28

e) 3.79*10^-19

The energy of one photon of the given light is

Explanation:

To calculate the energy of one photon, we use Planck's equation, which is:

where,

= wavelength of light =        (Conversion factor:    )

h = Planck's constant =

c = speed of light =

Putting values in above equation, we get:

Hence, the energy of one photon of the given light is

the answers would be

the first one and the second one

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.