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## #1 2017-10-27 04:14:26

**shakeel123****Moderator**- Registered: 2017-09-21
- Posts: 50,796

### Measurement of a standard meter in terms of the wavelength of red...

# Physics ECAT Exams Quizzes MCQs Quizzes Physics ECAT Physical Optics Online Test 3

**Question:**

Measurement of a standard meter in terms of the wavelength of red cadmium light is

**Option A):**

155,553.5**Option B):**

1,563,163.5**Option C):**

1,553,363.5**Option D):**

1,553,163.5

**Correct Answer is Option D):**

1,553,163.5

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## 2017-10-27 04:14:26

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### Re: Measurement of a standard meter in terms of the wavelength of red...

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