Question

The velocity of light in vacuum is 300000000 cm s. This is expressed in standard from significant figures as:

• A. $0.003\times {10}^{11}m/s$
• B. $300\times {10}^{6}m/s$
• C. $3.00\times {10}^{8}m/s$
• D. $0.03\times {10}^{1}0m/s$

Answer 1

The correct option is A $0.003\times {10}^{11}m/s$

Velocity of light in vacuum is $3\times {10}^{8}m/s$

This value can be written as $0.003\times {10}^{11}m/s$