Rom The pud. across resistor R is 4 V. and the power dissipated in R is 2 W. 2.1 Calculate the resistance of R 22 What is the p. d across the 6 resistor? 2.3 Find the current through the 602 resistor. 2.4 Calculate the effective resistance of the parallel connection of resistors 2.5 Find the current through the 16 resistor. 26 Calculate the voltage of the battery.​

hypothesising or postulating

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.

answer///terminator or twilight zone;