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What is photometry?

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What is photometry?

Posted by Amit Maurya 7 years ago

CBSE > Class 12 > Physics

5 answers

Amit Maurya 6 years, 11 months ago

One more i send . Please tell me nobody explin this

Amit Maurya 6 years, 11 months ago

Ok thanks

Saumya Agrawal 6 years, 11 months ago

Loght* light ... I think si unit is Lumen second

Amit Maurya 7 years ago

But what is its si unit?

Saumya Agrawal 7 years ago

Photometry is the technique to measure loght in terms of its brightness to human eyes...

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