Using Einstein's photoelectric equation:
(K.E.)max = ε - φ where, ε is the energy of incident photon in eV, and φ is work function.
Given λ = hc/ε.
Thus, ε = hc/λ.
(K.E.)max = ε - φ
Which of the following statements are correct, if the threshold frequency of caesium is $ 5.16 \times 10^{14} \, \text{Hz} $?
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A typical unfertilized, angiosperm embryo sac at maturity is 8-nucleate and 7-celled.
Reason (R): The egg apparatus has 2 polar nuclei.
In the light of the above statements, choose the correct answer from the options given below: