Physics: light "a red laser beam travels from flint glass into lemon oil. the angle of incidence is 40* while the angle of refraction is 44.4* what is the refractive index of lemon oil? " i know the refractive index of flint glass is 1.61, but i need finding the equation to use to find the refractive index of lemon oil.

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction

What happens to the vapor pressure of a substance when its surface area is increased at constant temperature?