What causes chromatic aberration? Why does it not occur in reflecting telescopes?
What will be an ideal response?
When light is refracted through glass, shorter-wavelength light bends more than longer wavelengths. This color separation is called chromatic aberration. Reflecting telescopes do not suffer from chromatic aberration because the light does not pass through the glass.
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What distance method did Edwin Hubble use to determine the distance to local galaxies?
a. Hubble Law b. Supernova observations c. Period-luminosity relationship of variable stars d. Parallax
A muon is an unstable particle that has an average lifetime of 1.52 × 10-6 s
This is the time interval between its creation in a nuclear process and its extinction into decay products, as measured in a frame of reference at rest with respect to the muon. An "average" muon is observed by a scientist on Earth to travel 342 m in its lifetime. What is the speed of the muon relative to Earth? A) 0.821c B) 0.681c C) 0.601c D) 0.551c E) 0.335c
Ideal Gas Law: A sealed cylinder fitted with a movable piston contains ideal gas at 27°C, pressure 0.500 × 105 Pa, and volume 1.25 m3. What will be the final temperature if the gas is compressed to 0.800 m3 and the pressure rises to 0.820 × 105 Pa?
A. 42°C B. 68°C C. 130°C D. 250°C E. 150°C
A certain planet has an escape speed V. If another planet of the same size has twice the mass as the first planet, its escape speed will be
A) 2V. B) V. C) V. D) V/2. E) V/ .