1.

A plot of the kinetic energy `((1)/(2)mv^(2))` of ejected electrons as a function of the frequency (v) of incident radiation for four alkali metals `(M_(1),M_(2),M_(3),M_(4))` is given below: The alkali metals `M_(1),M_(2),M_(3),M_(4)` are respectively:A. Li,Na,K and RbB. Rb,K,Na and LiC. Na, K, Li and RbD. Rb, Li, Na and K

Answer» Correct Answer - B
Intercept on v-axis denotes `v_(0)`
`v_(0)=(phi)/(h)` where `phi`=work function of the metal.
Thus, greater is the value of `v_(0)`, more will be the work function of the metal.


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