Science [2 Mark Questions]

Step : 1 Identify the last digit to be kept. 2 is the last digit to be kept.
Step : 2 The following digit, (i.e.) 3 is less than 5. SI retain 2 as 2.
∴ The answer is 5.32.

C = K – 273
C = 100 – 273
= -173° C

K = C + 273
= 36 + 273
= 309 K

(i) 0° C
(ii) 100
(iii) 212° F
(iv) 373 K
(v) 100

The measure of the power of the emitted light, by a light source in a particular direction, per unit solid angle, is called luminous intensity.

An electric current is measured by the amount of electric charge moving per unit time at any point in the circuit. The conventional symbol for current is I.

Measurement is a comparison of an unknown quantity with a known fixed quantity of the same kind.
The value obtained on measuring a quantity is called its magnitude. The magnitude of a quantity is expressed as numbers in its unit.