Answer:
The value of wavelength is ,
Explanation:
We know ,
For Balmer series :
Here , R is Rydberg constant ,
Therefore ,
Here , should be less than 400 nm and should be the lower limit for wavelengths in the visible spectrum.
Putting n = 7 .
We get ,
Hence , this is the required solution.
Answer:
a. a peak intensity located at shorter wavelength
Explanation:
We can answer this question by using Wien's displacement law, which relates the temperature of a black body to the peak wavelength of the spectrum of its emitted radiation, as follows:
where:
is the wavelength of the peak of its spectrum
T is the absolute temperature at the surface of the body
is called Wien's constant
From the equation above, we see that the peak wavelength and the temperature have an inverse relationship. In fact, we can rewrite it as
By looking at the equation in this form, we can see that the higher the temperature of the object, the shorter the wavelength of its peak: therefore, the correct answer is
a. a peak intensity located at shorter wavelength
Answern:no it’s all wrong it’s 3.00 and the third is .22 and the thirds is .15
Explanation:
Answer : The mass of cereal in two units are, 34.815 oz and 978.075 grams respectively.
Explanation :
As there are two systems for measuring the units which are English and Metric system.
The Metric System measured the things in meters, grams, liters, etc and adds prefixes like kilo, milli and centi to the count orders of the magnitude.
The English system measured the things in feet, inches, pounds, mile, etc.
As we are given the mass of cereal in 978 grams that means 987 grams is in metric unit. Now we have to convert metric unit into English unit.
Conversion factor used : (1 oz = 28.350 g)
As, 28.350 grams = 1 oz
So, 987 grams =
= 34.815 oz
As we are given the mass of cereal in 34.5 oz that means 34.5 oz is in metric unit. Now we have to convert metric unit into English unit.
Conversion factor used : (1 oz = 28.350 g)
As, 1 oz = 28.350 grams
So, 34.5 oz =
= 978.075 grams
Therefore, the mass of cereal in two units are, 34.815 oz and 978.075 grams respectively.