A concave mirror has a radius of 2.0 m. What is the refractive power of a lens of the same focal length as the mirror?
A. 0.50 D
B. 1.0 D
C. 2.0 D
D. 0.75 D
E. -0.50 D
B. 1.0 D
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A region where a denser basaltic plate is subducted under a continental one is:
A) the Himalayas. B) the Nazca Trench. C) the Mid-Atlantic Rift. D) Hawaii. E) the San Andreas Fault.
The order of evolutionary stages of a star like the Sun would be Main Sequence, giant, planetary nebula, and finally:
A) hypernova. B) neutron star. C) white dwarf. D) nova. E) black hole.
The Sun is not seen as yellow-green because
A) it is not yellow-green. B) it is small part of a mixture of other colors in sunlight. C) its brightness is only slightly greater than the other colors. D) our vision is not adapted to yellow-green.
Saturn's rings are thick, perhaps a few thousand kilometers
Indicate whether the statement is true or false