Question

The velocity of light is 3.0 x 10^8 ms. Which value is
closest to the wavelength in nanometres of a quantum of light with frequency of 8 x 10^15 s-1
(a) 3 x 10^7
(c) 5 × 10^-18
(b)2 x 10^-25
(d) 3.7 x 10^1
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Answer 1

The velocity of light is 3.0 x 10^8 ms. Which value is

closest to the wavelength in nanometres of a quantum of light with frequency of 8 x 10^15 s-1

(a) 3 x 10^7

(c) 5 × 10^-18

⭕✔️⭕(b)2 x 10^-25

(d) 3.7 x 10^1

Answer 2

Here is your answer~

option (B)