A and c because it is just easy
Answer:
A large lens can be very heavy and can only be supported at the edge.
Explanation:
A curved primary mirror is the reflector telescope's basic optical element that creates an image at the focal plane. The distance from the mirror to the focal plane is called the focal length. Film or a digital sensor may be located here to record the image, or a secondary mirror may be added to modify the optical characteristics and/or redirect the light to film, digital sensors, or an eyepiece for visual observation.
The use of mirrors avoids chromatic aberration but they produce other types of aberrations. A simple spherical mirror cannot bring light from a distant object to a common focus since the reflection of light rays striking the mirror near its edge do not converge with those that reflect from nearer the center of the mirror, a defect called spherical aberration. To avoid this problem most reflecting telescopes use parabolic shaped mirrors, a shape that can focus all the light to a common focus. Parabolic mirrors work well with objects near the center of the image they produce, (light traveling parallel to the mirror's optical axis), but towards the edge of that same field of view they suffer from off axis aberrations:
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Answer:
def student_minmax(filename):
"""
Description: Reads student names and finds min and max score
Input: Name of the file that has the student data
Output: Dictionary with name as key and value is a list with min and max values
"""
# Dictionary that holds the results
studentDict = {}
# Opening and reading file
with open(filename, "r") as fp:
# Reading data line by line
for line in fp:
# Stripping new line
line = line.strip()
# Splitting into fields
fields = line.split(' ')
# Getting name and scores
name = fields[0]
scores = []
scoresStr = fields[1:]
# Converting to integer
for score in scoresStr:
scores.append(int(score))
# Storing in dictionary
studentDict[name] = []
studentDict[name].append(min(scores))
studentDict[name].append(max(scores))
# Returning dictionary
return studentDict
# Testing function
resDict = student_minmax("d:\\Python\\studentMarks.txt")
# Printing dict
print(resDict)
Explanation:
Answer:
Federalism
Explanation:
IT companies apply different governance approaches like Distributed Control, Decentralized, Federalism, joint-Control, and Centralized control but in above mentioned scenario it is federalism which is best fitted in this case.