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Question

# A black paper absorbs light of all the colours and reflects none.

A
False
B
True
Solution
Verified by Toppr

#### Correct option is A. TrueFrom conversion from $$ms^{-1}$$ to $$kmh^{-1}$$ we get,As $$1km=1000m$$ and $$1hr=3600sec$$5 $$ms^{-1}$$ =$$\dfrac{5m}{sec}$$= $$\dfrac{5 \times 10^{-3}km}{1/3600hr}$$=$$0.005 \times 3600$$ =$$18kmh^{-1}$$Hence,the speed 5 $$ms^{-1}$$ is less than 25 km $$h^{-1}$$.

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