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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 :
spherometer
goniometer
heliometer
focometer
2)
The distance through which the screw advances when it is rotated through one division of the head scale is called?
Zero error
Least count
Zero correction
Pitch
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 mm
0.001 mm
0.01 cm
0.1 mm
4)
What is the zero correction for a spherometer?
May be positive or negative.
Positive.
Negative.
No zero correction.
5)
When the circular scale completes one rotation, what is the distance moved by the screw?
Zero correction
Pitch
Least count
Zero error
6)
The principle of spherometer is same as which of the following?
Spectrometer
Vernier calliper
Screw gauge
Micrometer screw
7)
What is the possible least count of your laboratory spherometer?
0.2 mm
0.01 mm
0.1 mm
0.05 mm
8)
The least count of spherometer is calculated by:
Pitch × No of head scale divisions
Pitch / No of rotations
Pitch / No of head scale divisions
Pitch × No of rotations
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 radius of curvature of a sphere
Measures the diameter of the circle
Measures refractive index of a sphere
All of these
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Cite this Simulator:
amrita.olabs.edu.in,. (2014). Spherometer. Retrieved 24 September 2017, from amrita.olabs.edu.in/?sub=1&brch=5&sim=168&cnt=389