Fundamentals of...

What is the least count of the travelling microscope?

A car covers a distance of \(160\) km between two cities in \(4\) h. What is the average speed of the car?

What is the value of the least count vernier calliper?

At which of the following positions does a mass and spring harmonic oscillator possess maximum kinetic energy?

When we can say that vernier callipers is free from zero error?

The diagram below shows part of the main scale and vernier scale of a vernier callipers, which is used to measure the diameter of a metal ball. Find the least count and the radius of the ball.

How would the frequency of a pendulum alter if it were to be determined at the poles?

50 divisions on the vernier scale coincides with 49 divisions on the main scale of a vernier caliper. The least count of instrument, if graduation on the main scale is 2 mm, is :

Least count of a vernier callipers is \(0.01 \mathrm{cm}\). When the two jaws of the instrument touch each other the \(5^{t h}\) division of the vernier scale coincide with a main scale division and the zero of the vernier scale lies to the left of the zero of the main scale. Furthermore while measuring the diameter of a sphere, the zero mark of the vernier scale lies between \(2.4 \mathrm{cm}\) and \(2.5 \mathrm{cm}\) and the \(6^{\text {th }}\) vernier division coincides with a main scale division. Calculate the diameter of the sphere.

The head scale of a screw gauge has 200 divisions and its thimble moves by 0.5 mm along the main scale for one complete rotation of the screw. Find its least count.

Two simple pendulums of length 0.5 m and 2 m respectively are given small linear displacement in one direction at the same time. They will again be in the phase when the pendulum of shorter length has completed x oscillations, where x is:

What is the length of second's pendulum where g is 980 cms^-2 ?

Which of the following instruments cannot be used to measure length up to second place of a centimeter?

Which of the following instruments has minimum least count?

The pitch of a screw gauge is \(1 \mathrm{mm}\) and there are 100 divisions on the circular scale. While measuring the diameter of a wire, the linear scale reads \(1 \mathrm{mm}\) and \(47^{t h}\) division on the circular scale coincides with the reference line. The length of the wire is \(5.6 \mathrm{cm} .\) Find the curved surface area (in \(\mathrm{cm}^{2}\) ) of the wire in appropriate number of significant figures.

The upper jaws of the vernier calipers are used to measure

While measuring the diameter of a sphere with a vernier calipers if MSR and VCD are 35 mm and 5 respectively and if the vernier scale consists of 20 divisions and 1 MSD is 1 mm then what is the diameter of the sphere?

In the following I refers to current and other symbols have their usual meaning. Choose the option that corresponds to the dimensions of electrical conductivity:

While measuring the length of a rod with a vernier calipers, given figure shows the position of its scales. What is the length of the rod?

The statement, "Each volumes of two different substances have equal masses" is