Find the energy stored in a 90 cm length of a laser beam operating at 10 mW.
Physics · NEET · NTA Exams — Work, Energy and Power
Find the energy stored in a 90 cm length of a laser beam operating at 10 mW.
- 30\(x\)10\(\text { — }\)12 J
- 12\(x\)10\(\text { — }\)2 J
- 13\(x\)10\(\text { — }\)6 J
- 3\(x\)10\(\text { — }\)6 J
Answer
(D) 3 x 10 — 6 J
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