An object sits at the focal point of a parabolic mirror.At what distance from the mirror will its image be created?
A) It will be imaged at half the focal length.
B) It will be imaged at the focal length.
C) It will be imaged at twice the focal length.
D) No image will be created (the beams would be reflected parallel to each other) .
Correct Answer:
Verified
Q19: In the past,astronomers have placed telescopes in
Q20: Only point sources look both closer and
Q21: The angular resolution of a ground-based telescope
Q22: A grating is able to spread white
Q23: Before CCDs were invented,what was the device
Q25: How much fainter are the faintest stars
Q26: Photography provides an improvement over naked-eye observations
Q27: Why can a compound lens combat a
Q28: The diffraction limit of a 4-m telescope
Q29: Cameras that use adaptive optics provide higher
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents