Directions: Write TRUE if the statement is true and if Not, underline and change the words that state it wrong. ___________1. Radio waves are one of the examples of electromagnetic waves that can travel in an empty space or vacuum. ____________2. In Refraction, Incident ray and Reflected ray are equal in measurements. ____________3. In Reflection, the Angle of Incidence and Angle of Reflection are equal in measurements. _____________4. Mechanical waves can travel or propagate in a vacuum. _____________5. Physical Optics explain the reflection and refraction of light.

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