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Class 11
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Spherometer
Spherometer
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1)
An instrument for measuring focal length of a lens is called :
goniometer
spherometer
heliometer
focometer
2)
The distance through which the screw advances when it is rotated through one division of the head scale is called?
Pitch
Zero error
Least count
Zero correction
3)
The pitch of a spherometer is 1 mm and number of head scale division is 100. What is the least count of the spherometer?
0.01 cm
0.001 mm
0.01 mm
0.1 mm
4)
What is the zero correction for a spherometer?
Negative.
May be positive or negative.
No zero correction.
Positive.
5)
When the circular scale completes one rotation, what is the distance moved by the screw?
Least count
Pitch
Zero correction
Zero error
6)
The principle of spherometer is same as which of the following?
Spectrometer
Screw gauge
Micrometer screw
Vernier calliper
7)
What is the possible least count of your laboratory spherometer?
0.2 mm
0.05 mm
0.1 mm
0.01 mm
8)
The least count of spherometer is calculated by:
Pitch / No of rotations
Pitch × No of rotations
Pitch × No of head scale divisions
Pitch / No of head scale divisions
9)
What is the instrument used to measure the radius of curvature of a surface?
Spectrometer
Vernier calipers
Screw guage
Spherometer
10)
Why is a spherometer so called?
Measures the diameter of the circle
Measures the radius of curvature of a sphere
Measures refractive index of a sphere
All of these
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Cite this Simulator:
amrita.olabs.edu.in,. (2014). Spherometer. Retrieved 26 May 2017, from amrita.olabs.edu.in/?sub=1&brch=5&sim=168&cnt=389