Question

If the distance of Uranus from Sun is 2870000000 km,

then this distance in scientific notation is written as

(1) 2.87 × 1012 cm

(2) 2.87 × 1014 cm

(3) 2.87 × 1011 cm

(4) 2.87 × 1015 cm

Answer 1

2
(2) 2.87 × 1014 cm


is the right answer

Answer 2

Answer:

The correct option is 2.

Step-by-step explanation:

It is given that the distance of Uranus from Sun is 2870000000 km.

We know that

1 m = 100 cm

1 km = 1000 m

1 km =1000 × 100 = 100,000 = 10⁵ cm

2870000000 km =2870000000 ×  10⁵ cm

In a scientific notation of a number between 1 and 10 and multiplied by a power of 10.

2870000000 km =2.87 ×  10⁹ ×  10⁵ cm

2870000000 km =2.87 ×  10⁹⁺⁵ cm

2870000000 km =2.87 ×  10¹⁴ cm

Therefore option 2 is correct.