Chapter 12, Problem 132AE

Interpretation Introduction

Interpretation:Time taken by oven to boil water is to be determined. Also, number of photons absorbed is to be calculated.

Concept introduction:Energy possessed by a single photon is termed as photon energy. Energy of photon is calculated as follows:

  $E_{\text{photon}}=h\nu$

Or

  $E_{\text{photon}}=\frac{hc}{\lambda }$

Where,

  $E_{\text{photon}}$ is energy of photon.

  $h$ isplanck’s constant.

  $\nu$ is frequency of photon.

  $c$ is speed of light.

  $\lambda$ is wavelength of energy.

Energy of photon is directly related to frequency but inversely related to wavelength of light.

Heat required to change the temperature by $1°\text{C}$ per unit mass is termed as specific heat capacity.