Question

4
3. Calcutate
the energy
of red light having
of 6.80 x 10
frequency
wavelength​

Answer 1

Answer:

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Answer 2

Answer:

Explanation:

E = 2.92 × 10 ^− 19 J = 1.83 eV

f = 4.41 ×10 ^14 Hz

Explanation:

Given λ = 6.80 × 10 ^− 5 cm= 6.80 × 10 ^− 7 m

E = h c /λ  and  f = c /λ

h = 6.626 × 10 ^− 34 m ^2 kg s ^− 1

c = 3.00 × 10 ^8 ms ^− 1

Hence:

E = 2.92 × 10^− 19 J = 1.83 eV

f = 4.41 × 10 ^14 Hz

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