Question

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Answer 1

2 ×10¹⁵ × 6.626 × 10^-34= 13.25 × 10^-19

= 1.3 × 10^-18

Step-by-step explanation:

The energy associated with an electromagnetic wave is given by Planck's constant (6.626 x 10-34 Js) times its frequency.

Answer 2

E = 1.3*10^-18 J

Step-by-step explanation:

E = hv

E = 6.626*10^-34 Js * 2 *10^15 s-1

E = 13.252*10^-19 J

E = 1.3*10^-18 J