Answer :
<u>Solution For 1 : </u>
Given,
wavelength =
Speed of light =
Formula used :
.............(1)
= frequency
= wavelength
c = speed of light
Now put all the given values in above formula, we get
=
(1Hz = 1 per second)
Therefore, the frequency of a photon in hertz is .
<u>Solution For 2 : </u>
Given,
Frequency =
Speed of light =
Now put all the given values in above formula (1), we get
Therefore, the wavelength of a wave is 13.38 m.
<u>Solution For 3 : </u>
Given,
wavelength =
Speed of light =
Now put all the given values in above formula (1), we get
=
Therefore, the frequency of a photon in hertz is .
<u>Solution For 4 : </u>
Given,
Frequency =
Speed of light =
Now put all the given values in above formula (1), we get
Therefore, the wavelength of a wave is .
<u>Solution For 5 : </u>
Given,
wavelength = (1 m = 1000 mm)
Speed of light =
Now put all the given values in above formula (1), we get
=
Therefore, the frequency of a photon in hertz is .
Answer:
The recovery of pure caffeine is 67.3% of the original, crude sample.
Explanation:
Step 1: Data given
Mass of pure caffeine = 1.69 grams
Original mass of sample = 2.51 grams
Step 2: What is the percent recovery of pure caffeine from crude?
Percentage = (mass of recovery / original mass) *100%
Percentage = (1.69 grams/2.51 grams) *100%
Percentage = 67.3 %
The recovery of pure caffeine is 67.3% of the original, crude sample.
Photosynethesis, respiration, and combustion.