When an electron drops from the e2 level to the e1 level, the atoms are said to undergo emission. calculate the wavelength (in nm) of the photon emitted in this process. enter your answer in scientific notation.

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Which is an example of an exothermic process?