Spherical Mirrors: An object that is 2.0 cm tall is placed at the center of curvature in front of a concave mirror. How tall is its image?
A. 0.50 cm
B. 1.0 cm
C. 1.5 cm
D. 2.0 cm
E. infinite
Answer: D
You might also like to view...
At the microscopic level, the difference between gases and solids is that
A) there is much more distance (at least 10 times more) between neighboring atoms in a gas than between neighboring atoms in a solid. B) the gas's atoms move throughout the gas, while the solid's atoms remain near their original locations. C) in a gas, the individual atoms are larger. D) both answers A and B are correct. E) both answers B and C are correct.
Two astronauts of equal mass are holding on to each other and moving at a speed of 30 m/s. They push off of each other and one of the astronauts moves in the same direction as the two were initially moving but at 60 m/s. The velocity of the second astronaut is
A. 30 m/s forward. B. 60 m/s forward. C. 60 m/s backward. D. zero. E. 30 m/s backward.
Optical fibers work because of __________
Fill in the blank(s) with correct word
At a distance of 14,000 km from the center of Planet Z-99, the acceleration due to gravity is 32 m/s2. What is the acceleration due to gravity at a point 28,000 km from the center of this planet?
A) 8.0 m/s2 B) 16 m/s2 C) 128 m/s2 D) 4.0 m/s2 E) 2.0 m/s2