PA06 · Quiz — Optics: Light & Its Applications

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Question 1

The speed of light in vacuum is approximately:

A3 × 10⁶ m/s

B3 × 10⁸ m/s

C3 × 10¹⁰ m/s

D3 × 10⁴ m/s

Question 2

The phenomenon of total internal reflection requires that light travels from:

ARarer to denser medium at any angle

BDenser to rarer medium at an angle greater than

CDenser to rarer medium at any angle

DRarer to denser medium at large angles

Question 3

A concave mirror is used as a shaving/makeup mirror because it produces:

AA diminished, erect virtual image

BA magnified, erect virtual image when object is

CAn inverted, real image at all positions

DA virtual image at infinity

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PA06 — Optics: Light & Its Applications — Quiz