Question

if the frequency of violet radiation is 7.5×10^14 Hz find wave no.

Answer 1

Answer:

wave no =frequency /speed of light

Answer 2

given:-

frequency of violet radiation: 7.5×10^14 Hertz

to find:-

wave number of the radiation.

solution:

we know that:-

$\boxed {\red {\sf wave \:number=\dfrac {wavelength}{speed \:of\:light}}}$

$\tt\implies wave\:number=\dfrac{7.5×10^{14}}{3×10^{8}}$

$\tt \implies wave \:number = 2.5×10^{6}$

hence, the final answer will be 2.5×10^6.

This question was to be solved with the formula mentioned above.

just place value and solving would proceed to the solution

hope this helps!