A 81 cm long brass rod has a diameter of 3 mm. The temperature of one end is 50 degrees higher than the other end. How much heat
1 answer:
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Answer: 430 nm.
Explanation:
The relation of wavelength and frequency is:
Formula used :
where,
= frequency =
= wavelength = ?
c = speed of light =
Now put all the given values in this formula, we get
Thus the wavelength (in nm) of the blue light emitted by a mercury lamp is 430 nm.