Question

some numericals based on parallax mehod

Answer 1

The number of significant figures in 0.06900 is

(a) 5

(b) 4

(c) 2

(d) 3

The sum of the numbers 436.32, 227.2 and 0.301 in appropriate significant figures is

(a) 663.821

(b) 664

(c) 663.8

(d) 663.82

The mass and volume of a body are 4.237 g and 2.5 cm3, respectively. The density of the material of the body in correct significant figures is

(a) 1.6048 g cm-3

(b) 1.69 g cm-3

(c) 1.7 g cm-3

(d) 1.695 g cm-3

The numbers 2.745 and 2.735 on rounding off to 3 significant figures will give

(a) 2.75 and 2.74

(b) 2.74 and 2.73

(c) 2.75 and 2.73

(d) 2.74 and 2.74