Quantum Theory of Light. Photoeffect.

Friends! I conducted experiments with a vacuum photocell. If there is a sufficient potential difference between the cathode and the anode, the value of the photocurrent depends on the frequency of light incident radiation. The higher the frequency, the greater the power of the photocurrent should be. Please note that the current value when using the yellow filter is slightly greater than when using the blue filter. How do you explain this phenomenon? As you know, light has the property of wave-particle dual