- What is a spherometer?
- Spherometer works on what principle?
- Mention the least count of the spherometer.
- Define the pitch of the spherometer.
- What is the formula to calculate the least count of a spherometer?
- What is the value of the pitch of the screw?
- What is the formula to calculate the radius of curvature using a spherometer?
- Choose YES or NO: Can the central leg of the spherometer move in downward and upward directions?
- What would be the distance moved by the screw in 10 complete rotations?
- What will be the number of divisions on the circular scale?
- Who invented the spherometer?
- For what purpose do astronomers use the spherometer?
- Spherometer consists of how many outer legs?
Answer. A spherometer is an instrument used to measure the radius of curvature of a curved surface or a sphere accurately.
Answer. The spherometer works on the principle of the micrometer screw.
Answer. The least count of the spherometer is 0.01mm.
Answer. pitch is described as the distance advanced by the central screw in one complete rotation of the circular disc scale.
Answer. The least count is given by the formula:
Least count = Pitch of the spherometer screw / Number of divisions on the circular scale
Answer. The Pitch of the screw is 1 mm.
Answer. It is given by the formula:
Answer. YES. The central leg can be moved both upwards and downwards.
Answer. Distance moved by the screw in 10 complete rotations will be 10 mm
Answer. The number of divisions on the circular scale will be 100.
Answer. The spherometer was invented in 1810 by the French optician Robert-Aglae Cauchoix.
Answer. Astronomers used a spherometer for grinding lenses and curved mirrors.
Answer. The spherometer consists of three outer legs.