Answer:
- 58 cm
Explanation:
refractive index, n = 1.6
radius of curvature of left face, R1 = - 65 cm
Radius of curvature of the right face, R2 = 75 cm
Use the lens maker's formula
f = - 58 cm
Thus, the focal length of the lens is - 58 cm.
You're going to have to give me the choices.
I'm pretty sketchy on that subject.
Answer:
W = 234 J
Explanation:
Initial volume of air is given as
finally it is expanded isothermally to new pressure of 101.3 kPa
now by isothermal expansion we know
So work done in above process is given as
Now it is cooled to initial volume at constant pressure
so here in this case work done is given as
Now total work done is given as