দৃশ্যমান আলোর ফ্রিকোয়েন্সি পরিসীমা 3.75 xx 10^(14) Hz থেকে 7.5 xx 10^(14) Hz পর্যন্ত। হিসাব করুন...

2/5 xx (-3)/7 + 1/(14) xx 2/5

(1/4 xx 2/7)- ( 5/(14) xx 2/3)

(14.96 xx 10^(10)) - (3.84 xx 10^(8)) is expressed in standard form as

A light wave has a frequency of 4.8 xx 10^(14) Hz in a medium of R.I. 1.5 is

A and B are two metals with threshold frequencies 1.8 xx 10^(14)Hz and 2.2 xx 10^(14)Hz . Two identical photons of energy 0.825 eV each are incident on them. Then, photoelectrons are emitted by (Taking, h = 6.6 xx 10^(-34)J-s )

The effective mass of photon of frequency 5xx10^(14) Hz is