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Electrons are ejected from a metallic surface with speeds ranging up to 2.00 x 108 m/s when light with frequency of 4.00 x 1020 Hz. Find the cutoff frequency for this surface in units of 1020 Hz. (A) 2.45 (B) 4.78 (C) 6.51 (D) 3.58 (E) 5.49

Electrons are ejected from a metallic surface with speeds ranging up to 2.00 x 108 m/s when light with frequency of 4.00 x 1020 Hz. Find the cutoff frequency for this surface in units of 1020 Hz. (A) 2.45 (B) 4.78 (C) 6.51 (D) 3.58 (E) 5.49

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Electrons are ejected from a metallic surface with speeds ranging up to 2.00 x 10 m/s when light with frequency of 4.00 x 1020 Hz. Find the cutoff frequency for this surface in units of 1020 Hz. (B) 4.78 (C) 6.51 (A) 2.45 (D) 3.58 (E) 5.49
Transcribed Image Text:Electrons are ejected from a metallic surface with speeds ranging up to 2.00 x 10 m/s when light with frequency of 4.00 x 1020 Hz. Find the cutoff frequency for this surface in units of 1020 Hz. (B) 4.78 (C) 6.51 (A) 2.45 (D) 3.58 (E) 5.49
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