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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 :
heliometer
spherometer
goniometer
focometer
2)
The distance through which the screw advances when it is rotated through one division of the head scale is called?
Zero correction
Pitch
Zero error
Least count
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
0.01 cm
0.1 mm
0.001 mm
4)
What is the zero correction for a spherometer?
No zero correction.
Positive.
May be positive or negative.
Negative.
5)
When the circular scale completes one rotation, what is the distance moved by the screw?
Least count
Zero correction
Zero error
Pitch
6)
The principle of spherometer is same as which of the following?
Spectrometer
Screw gauge
Vernier calliper
Micrometer screw
7)
What is the possible least count of your laboratory spherometer?
0.05 mm
0.01 mm
0.2 mm
0.1 mm
8)
The least count of spherometer is calculated by:
Pitch × No of head scale divisions
Pitch × No of rotations
Pitch / No of rotations
Pitch / No of head scale divisions
9)
What is the instrument used to measure the radius of curvature of a surface?
Spectrometer
Screw guage
Vernier calipers
Spherometer
10)
Why is a spherometer so called?
Measures the radius of curvature of a sphere
Measures refractive index of a sphere
All of these
Measures the diameter of the circle
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Cite this Simulator:
amrita.olabs.edu.in,. (2014). Spherometer. Retrieved 18 September 2020, from amrita.olabs.edu.in/?sub=1&brch=5&sim=168&cnt=389