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Can some help me to solve this question
I have no idea where to start
a) What is the physical significance of the intercept of the graph with the frequency axis (xaxis)?
b) What is the physical significance of the intercept of the graph with the kinetic energy axis (yaxis)?
c) Use the graph to determine the value of Planck’s constant
d) In a similar experiment, the cathode of the photocell is replaced with a cathode that has a stronger force of attraction for its electrons. Describe how a graph of kinetic energy against frequency would be
i. Similar to the given graph
ii. Different from the given graph
I have no idea where to start
a) What is the physical significance of the intercept of the graph with the frequency axis (xaxis)?
b) What is the physical significance of the intercept of the graph with the kinetic energy axis (yaxis)?
c) Use the graph to determine the value of Planck’s constant
d) In a similar experiment, the cathode of the photocell is replaced with a cathode that has a stronger force of attraction for its electrons. Describe how a graph of kinetic energy against frequency would be
i. Similar to the given graph
ii. Different from the given graph
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