Which of the following statements are true about the lenses used in eyeglasses to correct nearsightedness and farsightedness? (there may be more than one correct choice.)a: they produce a real image. b: they produce a virtual image. c: both nearsightedness and farsightedness are corrected with a converging lens. d: both nearsightedness and farsightedness are corrected with a diverging lens

A: They produce a real image.

Explanation:

The images formed on the retina of the eye for a normal visibility must always be real.

Only a real image can be physically projected on any physical object whereas the virtual images are visible due to reflections.

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat

the area between the graph and the t axis