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Stella [2.4K]
3 years ago
8

jin has four colorful glass bottles on his windowsill. one is red, one is violet, one is green, and one is yellow. the light tha

t passes through which bottle has the lowest frequency? red violet green yellow

Chemistry
2 answers:
Over [174]3 years ago
4 0
The red bottle would have the lowest frequency because red light has the longest wavelengths. The light passing through the violet would have the highest frequency because its wavelengths are the shortest.
Sloan [31]3 years ago
3 0

Answer: The light passing through Red bottle will have the lowest frequency.

Explanation: Relation between wavelength and frequency follows:

\nu =\frac{c}{\lambda }

As, from the above relation, it is clear that the wavelength and frequency follows inverse relation, so the light having highest wavelength will have the lowest frequency.

From the spectra of visible region, the wavelength of Red light is maximum and hence, it will have the lowest frequency.

Therefore, the light passing through the bottle which is red in color will have the lowest frequency.

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When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(II)
lesya692 [45]

Answer: The mass of lead deposited on the cathode of the battery is 1.523 g.

Explanation:

Given: Current = 62.0 A

Time = 23.0 sec

Formula used to calculate charge is as follows.

Q = I \times t

where,

Q = charge

I = current

t = time

Substitute the values into above formula as follows.

Q = I \times t\\= 62.0 A \times 23.0 sec\\= 1426 C

It is known that 1 mole of a substance tends to deposit a charge of 96500 C. Therefore, number of moles obtained by 1426 C of charge is as follows.

Moles = \frac{1426 C}{96500 C/mol}\\= 0.0147 mol

The oxidation state of Pb in PbSO_{4} is 2. So, moles deposited by Pb is as follows.

Moles of Pb = \frac{0.0147}{2}\\= 0.00735 mol

It is known that molar mass of lead (Pb) is 207.2 g/mol. Now, mass of lead is calculated as follows.

No. of moles = \frac{mass}{molar mass}\\ 0.00735 = \frac{mass}{207.2 g/mol}\\mass = 1.523 g

Thus, we can conclude that the mass of lead deposited on the cathode of the battery is 1.523 g.

3 0
2 years ago
Which moon phase does a solar eclipse occur in?
VARVARA [1.3K]

Answer:

full moon, i think

Explanation:

6 0
3 years ago
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0.5 moles of sodium chloride is dissolved to make 0.05 liters of solution what is the molarity
Sunny_sXe [5.5K]
Molarity =  moles of solute / liters of solution

M = 0.5 / 0.05

M = 10.0 mol/L⁻¹

hope this helps!
4 0
3 years ago
When a pot of water sits on a hot stove, the metal pot is heated, and then transfers its heat to the water. A student claims tha
finlep [7]

When a pot of water sits on a hot stove, the metal pot is heated, and then transfers its heat to the water. A student claims that conduction is the only type of heat transfer occurring. The statement that explains why the student’s idea is incorrect Conduction cannot occur between two different phases of matter. The answer is letter A.

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3 years ago
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Moving force of air flows from areas of high pressure to areas of low pressure true or false
Andru [333]
Air does move from high to low pressure so true
7 0
3 years ago
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