If a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them?
O from the hand to the cup
O from the cup to the hand
Ofrom the cup to the surrounding air
O from the hand to surrounding air

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

there are no correct statementd on the list of choices you provided.

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)