Indicate which of the following photons can cause emission of photoelectrons from a surface of gallium (
= 6.7 *10-19 J) .
Definitions:
Usury Laws
Regulations governing the amount of interest that can be charged on a loan, intended to prevent lenders from imposing excessively high interest rates.
Price Ceiling
A legal maximum price that can be charged for a good or service, typically set by government to protect consumers.
Price Floor
A government or regulatory imposed minimum price above the equilibrium price, preventing prices from dropping too low.
Usury Laws
Regulations designed to protect consumers by capping the interest rate that lenders can charge on credit.
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