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vitfil [10]
3 years ago
6

Calculate the frequency of electromagnetic wave with the wave length 344nm ( hint: use dimensional analysis)

Chemistry
1 answer:
Svetlanka [38]3 years ago
5 0
Frequency = speed of light
                      ---------------------------
                        wavelength 
 
                   =        3 x 10^8
                      ------------------------
                          344 x 10^-9
 
                   =          8.72 x 10^14 Hz.

Hope this helps!



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Answer:

The minimum resistance is 25 ohms.

Explanation:

Resistance of each resistor is 100 ohms. When resistors are connected in parallel, the equivalent resistance is lowest. For parallel combination, the equivalent resistance is given by :

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Here, all resistors are 100 ohms. So,

\dfrac{1}{R}=\dfrac{1}{100}+\dfrac{1}{100}+\dfrac{1}{100}+\dfrac{1}{100}\\\\R=25\ \Omega

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