Which outcome occurs when the cut-off frequency is lowered in a heterojunction phototransistor?

💡 Explanation

Reduced cut-off frequency decreases the energy for photoexcited carrier creation via the photoelectric effect; this process governs generation. Lower energy implies longer wavelengths will not excite carriers because the incident light energy must exceed the bandgap; therefore, reduced responsivity at longer wavelengths occurs, rather than the alternative effects.

• Which condition alters equilibrium composition in reversible exothermic gas-phase reaction in a closed system?
• Which outcome characterizes transmissive grating use near Brewster's angle?
• In a pressurized piezoelectric oxygen sensor, which consequence results when a crystal lattice defect exists?
• Which outcome occurs in a catalytic converter when exhaust gas flow fluctuates rapidly?
• Which phenomenon accelerates a supercritical fluid extraction process?
• Which outcome occurs when a pulsed electromagnet radiates energy?