Physics

# Velocity of light in centimeter per nano second is ......

##### SOLUTION
Velocity of light $=3\times 10^8 m/s=3\times 10^8\times 10^2 cm/s=\dfrac{3\times 10^{10}\times 10^{-9}}{10^{-9}} cm/s=30 cm/ns$
where $1 ns=10^{-9}s$

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Subjective Medium Published on 18th 08, 2020
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#### Realted Questions

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Assume that the mass M of the largest stone that can be moved by a flowing river depends upon the velocity v, the density of water d and the acceleration due to gravity g. Deduce the relationship between these quantities by dimensional analysis method.

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Q2 Assertion & Reason Medium
##### ASSERTION

In the measurement of physical quantities direct and indirect methods are used.

##### REASON

The accuracy and precision of measuring instruments along with errors in measurements should be taken into account, while expressing the result.

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1 Verified Answer | Published on 18th 08, 2020

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Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

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Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020