Science, asked by bhavanilogsha, 5 months ago

A micrometer has 150 equal divisions on the circular scale, and on one full rotation of
circular scale main scale advances by 0.02 cm on the main scale. The least count of the
micrometer (in cm) is
O 4 x 10-5
O 6.21 x 10-3
O 1.33 x 10-4
O 1.21 x 10-2

Answers

Answered by Anonymous

Answer:

option c.

Explanation:

1.33 × 10^-4.

it is best option.

Answered by amitnrw

Given : A micrometer has 150 equal divisions on the circular scale, and on one full rotation of circular scale main scale advances by 0.02 cm on the main scale.

To FInd : The least count of the micrometer (in cm) is

Solution:

micrometer has 150 equal divisions on the circular scale, and on one full rotation of circular scale main scale advances by 0.02 cm on the main scale.

1 main Scale = 150 Vernier scale Divisions

1 main Scale = 0.02 cm

150 Divisions = 0.02 cm

=> 1 Vernier scale Divisions = 0.02/150 cm

=> 1 Vernier scale Divisions = 2/15000 cm

=> 1 Vernier scale Divisions = 2/(1.5 x 10⁴) cm

=> 1 Vernier scale Divisions = 1.33 x 10⁻⁴ cm

The least count of the micrometer (in cm) is 1.33 x 10⁻⁴ cm

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