Name the physical quantity which remains same for microwaves of wavelength 1 mm and UV radiations of 1600 Å in vaccum.

Explanation

To solve the question, we need to identify the physical quantity that remains constant for both microwaves and ultraviolet (UV) radiations in a vacuum. Here’s a step-by-step solution:

### Step 1: Understand the relationship between wavelength, frequency, and speed of light
The speed of light (c) in a vacuum is a constant value and is given by the equation:
\[ c = f \lambda \]
where:
- \( c \) is the speed of light,
- \( f \) is the frequency,
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