Question

4. Two absolute scales X and Y assigned numerical values 200 and 450 to the triple point of water. What is the relation between
Ty and Ty?
(a) 9 Ty = 4 Ty
(b) 4 Ty = 9 Ty
(c) Tx= 3 Ty
(d) None of these​

Answer 1

Step-by-step explanation:

ANSWER

Triple point of water on absolute scale X, T

X

=200X

Triple point of water on absolute scale Y, T

Y

=450Y

Triple point of water on Kelvin scale, T

k

=273.15

The temperature 273.15 on kelvin scale is equivalent to 200X on absolute scale X

T

X

=T

k

200X=273.15

X=

200

273.15

Similarly, Y=

450

273.15

T

X

is the triple point of water on scale X and T

Y

is the triple point of water on scale Y

∴

200

273.15

×T

X

=

450

273.15

×T

Y

T

Y

T

X

=

9

4

9T

X

=4T

Y

Answer 2

Step-by-step explanation:

The principle of reversibility presupposes that the attenuation of a light ray during its passage through an optical medium because of reflection, refraction, and absorption is not affected by a reversal of the direction of the ray.