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11.Dual Nature of Radiation and matter
easy
For photoelectric emission, tungsten requires light of $ 2300 \mathring A$. If light of $1800 \mathring A $ wavelength is incident then emission
ATakes place
BDon’t take place
CMay or may not take place
DDepends on frequency
Solution
(a) In tungsten, photoemission take place with a light of wavelength $2300 \mathring A$. As emission of electron is inversely proportional to wavelength, all the wavelengths smaller then $2300 \mathring A$ will cause emission of electrons.
Standard 12
Physics