7 Consider two homogeneous bodies of
1 answer:
Answer:
No, it is not necessary for them to have same mass.
Explanation:
Let both bodies have a density d1 and d2 respectively.
Since their volumes are equal V1 = V2
we know that,
density =
Hence, d1 = and d2 =
Taking the ratio of densities,we get
This implies that unless the bodies have same densities, the mass of the two bodies will not be same.
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1 mole of photons contain 
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The wavelength of the light in the problem is
, so the frequency is
The energy carried by a single photon is
where
is the Planck constant, while f is the frequency. Since this is the energy carried by a single photon, the energy carried by 3.0 moles of photons will be the energy of the single photon multiplied by the total number of photons:
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The wavelength of the light in the problem is
The energy carried by a single photon is
where
which corresponds to E=536 kJ.