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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 :
focometer
heliometer
spherometer
goniometer
2)
The distance through which the screw advances when it is rotated through one division of the head scale is called?
Least count
Zero correction
Pitch
Zero error
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?
0.001 mm
0.1 mm
0.01 mm
0.01 cm
4)
What is the zero correction for a spherometer?
Positive.
May be positive or negative.
Negative.
No zero correction.
5)
When the circular scale completes one rotation, what is the distance moved by the screw?
Zero error
Zero correction
Least count
Pitch
6)
The principle of spherometer is same as which of the following?
Screw gauge
Micrometer screw
Spectrometer
Vernier calliper
7)
What is the possible least count of your laboratory spherometer?
0.1 mm
0.01 mm
0.05 mm
0.2 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
Screw guage
Spherometer
Vernier calipers
10)
Why is a spherometer so called?
All of these
Measures the radius of curvature of a sphere
Measures refractive index of a sphere
Measures the diameter of the circle
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Cite this Simulator:
amrita.olabs.edu.in,. (2014). Spherometer. Retrieved 18 February 2018, from amrita.olabs.edu.in/?sub=1&brch=5&sim=168&cnt=389