Question

Microwave ovens emit microwave energy with a wavelength of 13.0 cm. What is the energy of exactly one photon of this microwave radiation?

Answer 1

Microwave oven: An electric oven that cooks food by using electromagnetic radiation in the microwave frequency range is called as a microwave oven.

Calculation:

To calculate the frequency ν,

An expression between the velocity of light in vacuum  ,

c = ν × λ

Where,

λ  - Wave-length of the electromagnetic radiation.  

c  =  3 × 10 8 m s − 1

ν - Frequency

An expression connecting frequency to energy of photon ,

E = h ν

where  

h  - Planck's Constant  (6.626 × 10 − 34 m 2 k g s − 1 )

Equating both,

E = h × c λ

E = 1.629 × 10 − 24 J

Hence, the energy of exactly one photon of this microwave radiation is 1.629 × 10 − 24 J

Answer 2

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