Optics

Which electromagnetic waves have the highest frequencies and the shortest wavelengths?

• microwaves
• visible light
• gamma rays

The number of waves that pass a point in a certain amount of time is called

• frequency

• wavelength

• period

• amplitude

The velocity of light in vacuum is _______ m/s.

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

We see the color _______ when all visible light is reflected off an object.

• White
• Black

When red light is compared with violet light in a vacuum,

• both have the same frequency

• both have the same wavelength

• red light has a higher frequency

• red light has a higher wavelength

If the frequency of a green light wave increased, this green light could turn into

• red light

• yellow light

• blue light

• orange light

Filtering out all but one vibrational plane of light is called

• interference

• diffraction

• refraction

• polarization

The imaginary line perpendicular to a reflecting surface is called _____.

• crooked line
• parallel line
• angular line
• normal line

Part of a straw that is placed in a glass of water appears bent in relation to the part of the straw that extends out of the water. What is this phenomenon called?

• refraction

• reflection

• diffraction

• retraction

If a light ray strikes a flat mirror at an angle of 27° from the normal, the reflected ray will be

• 27° from the mirror’s surface

• 27° from the normal

• 90° from the mirror’s surface

• 63° from the normal