Non-metal atoms can form:
2 answers:
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Answer:
0.0025g/cm³
Explanation:
Given parameters:
Mass of the brown sugar = 12.9g
dimension of the sugar = 8cm
unknown:
density of the sugar = ?
Solution
Density is defined as the mass per unit volume of a substance. The expression is given below:
Density =
We know the mass of the substance but the volume is unknown:
Volume of the brown sugar = l x bx h = 8x8x8 = 512cm³
Density of the brown sugar = = 0.0025g/cm³
Answer : The frequency of a photon of radiation is,
Explanation : Given,
Wavelength of the radiation = 670.8 nm
First we have to convert wavelength form 'nm' to 'm'.
Conversion used :
So, the wavelength of the radiation = 670.8 nm =
Now we have to calculate the frequency of a photon of radiation.
Formula used :
where,
= frequency of a photon of radiation
= wavelength of the radiation
c = speed of light =
Now put all the given values in the above formula, we get the frequency of a photon of radiation.
Therefore, the frequency of a photon of radiation is,