A diverging lens cannot be used as a magnifying glass
Indicate whether the statement is true or false
TRUE
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If the redshift of a quasar were 3, at what wavelength would the 486.1-nm line of hydrogen appear in the quasar's spectrum?
What will be an ideal response?
A battery has an internal resistance of 4.0 ?. Which of the following load resistors would have the most power delivered to it when connected across the battery?
a. 1.4 ? b. 2.0 ? c. 4.0 ? d. 8.0 ? e. 16 ?
What is an inertial reference frame? It is one
a. that does not accelerate. c. that accelerates at a constant rate. b. that accelerates at a varying rate. d. in which velocities are all constant.
What makes carbon dioxide a highly effective greenhouse gas?
a. It easily absorbs UV radiation. b. It easily absorbs visible light. c. It easily absorbs infrared radiation. d. It easily reacts chemically with rock. e. It easily photodissociates in the upper