Phone: +92300-8320489

Enroll Now!

Phone: +92300-8320489

Enroll Now!

Which is the correct record for the diameter of wire when measured by a screw gauge of least count 0.001 cm:

Written by

in

(a)2.3 cm
(b) 2.31 cm
(c) 2.312 cm
(d) 2.3124 cm
See Answer

Answer:  2.312 cm

The least count of the screw gauge is 0.001 cm, which means it can measure values up to three decimal places.

The correct measurement should match this level of precision. Now, from the given options

    • 2.3 cm has only one decimal place, so it is not precise enough.
    • 2.31 cm has two decimal places, which also does not match the least count.
    • 2.312 cm has three decimal places, which is correct.
    • 2.3124 cm has four decimal places, which goes beyond the least count of the instrument.

The correct answer is 2.312 cm.

Related Quizzes

Which set of prefixes gives the value in increasing order:

(a)Pico, mega, kilo, tera
(b) Pico, micro, mega, giga
(c) Tera, Pico, micro, kilo
(d) Giga, kilo, mill, nano
See Answer

Answer:  Pico, micro, mega, giga

The least count of the screw gauge is 0.001 cm, which means it can measure values up to three decimal places.

The correct measurement should match this level of precision. Now, from the given options

    • 2.3 cm has only one decimal place, so it is not precise enough.
    • 2.31 cm has two decimal places, which also does not match the least count.
    • 2.312 cm has three decimal places, which is correct.
    • 2.3124 cm has four decimal places, which goes beyond the least count of the instrument.

The correct answer is 2.312 cm.

Principle of homogeneity of the equation used to check:

(a)Variable of the equation
(b) Constant of the equation
(c) Correctness of the equation
(d) Both variable and constant
See Answer

Answer:  Correctness of the equation

The least count of the screw gauge is 0.001 cm, which means it can measure values up to three decimal places.

The correct measurement should match this level of precision. Now, from the given options

    • 2.3 cm has only one decimal place, so it is not precise enough.
    • 2.31 cm has two decimal places, which also does not match the least count.
    • 2.312 cm has three decimal places, which is correct.
    • 2.3124 cm has four decimal places, which goes beyond the least count of the instrument.

The correct answer is 2.312 cm.

Significant figures in 0.0010 are:

(a)1
(b) 2
(c) 3
(d) 4
See Answer

Answer:  2

The least count of the screw gauge is 0.001 cm, which means it can measure values up to three decimal places.

The correct measurement should match this level of precision. Now, from the given options

    • 2.3 cm has only one decimal place, so it is not precise enough.
    • 2.31 cm has two decimal places, which also does not match the least count.
    • 2.312 cm has three decimal places, which is correct.
    • 2.3124 cm has four decimal places, which goes beyond the least count of the instrument.

The correct answer is 2.312 cm.

More posts

Enroll Now

Please fill out the form!