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  • An experiment is conducted to measure the diameter of a small spherical object using vernier calipers. The main scale reading is <img alt="M=2.5\ cm" src="https://entrancecorner.oncodecogs.com/gif.

An experiment is conducted to measure the diameter of a small spherical object using vernier calipers. The main scale reading is M=2.5\ cm, and the vernier scale reading is 15. The least count of the vernier calipers is 0.01\ cm. Calculate the diameter of the spherical object.

Option: 1

2.65\ cm


Option: 2

2.55\ cm


Option: 3

2.70\ cm


Option: 4

2.65\ mm


Answers (1)

best_answer

Given values:
• Main scale reading (M)=2.5\ cm
• Vernier scale reading (V)=15
• Least count of the vernier calipers 0.01\ cm
The total reading on the vernier calipers can be calculated by adding the
main scale reading and the vernier scale reading:
Total reading =M+V
Step 1: Calculate the total reading on the vernier calipers:
Total reading = 2.5\ cm + 15 \ mm = 2.65 \ cm

The least count of the vernier calipers is 0.01\ cm, which means that one
division on the vernier scale corresponds to 0.01\ cm.

Step 2: Calculate the actual reading by adding the number of vernier divi-
sions that coincide with the main scale reading from the total reading:

Actual reading = MSD + VSD \times LC
Actual reading = 2.5 + 15 \times 0.01\ cm
Actual reading = 2.65 \ cm
So ,correct option is A

Posted by

Divya Prakash Singh

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