The marginal rate of substitution measures the distance between one indifference curve and the next one. True False

False

Explanation:

The marginal rate of substitution measures what amount of good X a consumer is willing to give up in order to consumer an additional unit of good Y. It is a useful tool when you try top analyze consumer behavior and preferences between two goods.

It is represented by the slope of an indifference curve, it does not measure the distance between indifference curves.

2.282 ×  photons strike

Explanation:

Given data

average intensity = 1.00 kJ·s−1·m−2

wavelength = 510.0 nm

area = 8.90 cm²

to find out

how many photons strike

solution

we know energy of 1 photon i.e

= hc/ wavelength = 6.626 × × 3 / 510

energy of 1 photon = 3.9 × J

so now we know no of joules hitting is 8.90 cm²/sec

i.e = 1.00 kJ × 8.90 cm²

= 1000 × 8.90

= 0.8900 J

so number of photon is

N = 0.8900 / 3.9 ×

N = 2.282 ×

2.282 ×  photons strike