Explain the high intensity of the power of the laser.

The characteristic K, and K, lines for titanium have wavelengths of 0.275 nm and 0.251 nm, respectively. What is the ratio of the energy difference between the levels in titanium involved in the production of these two lines? AE

If we have a resistor physically but its color bands are not visible, then how can we calculate the value of resistor?

Your eyes have three different types of cones with maximum absorption at 437 nm, 533 nm, and 564 nm. What photon energies correspond to these wavelengths?