Chapter 6, Problem 2DQ

When astronomers discuss the apertures of their telescopes, they say bigger is better. Explain why. a) A wider aperture can observe a significantly larger portion of the sky. b) A wider aperture makes a telescope easier to aim. c) A wider aperture allows a telescope to collect more light, so it can produce images with higher resolution. d) A wider aperture allows a telescope to collect more light, so it can detect fainter light sources.

What is infinity mirror meaning?

Light from the Sun reaches us in nearly A. 2 minutes B. 4 minutes C. 8 minutes D. 16 minutes

How has the theory of light changed over time?

One of the earliest astronomical CCDs had 160,000 pixels, each recording 8 bits (256 levels of brightness). Today's CCDs may contain 100 million pixels, each recording 15 bits (32,768 levels of brightness).How many times more bits of data are produced by today's CCDs in a single image than that of the earliest CCDs?

What is color, and how do our eyes detect it?

which types of earth based telescopes can successfully observe celestial objects ? ( select all that apply) a. gamma ray telescope b. x ray telescope c.UV telescope d. visible light telescope e.infrared telescope f. radio telescope

The brightness, or intensity, of starlight varies inversely as the square of its distance from earth. The Hubble telescope can see stars whose intensities are 1/64 that of the faintest stars now seen by ground based telescope. Determine how much farther the Hubble telescope can see into space than ground based telescope. How much farther can the Hubble telescope see into space than ground based telescope?

List the three models of light?