Hot questions

0 votes

0 answers

Which of the following are not a unit of

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Which of the following time measuring devices is most precise? A wall

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Which of the following time measuring devices is most precise? A digital

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Time for 20 oscillations of a pendulum is measured as t 1= 39.6 s; t 2= 39.9 s; t 3 = 39.5 s. What is the precision in the measurements? What is the accuracy of the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

In Physics, quantitative measurement is central to the growth of science

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

With which phenomena, classical Physics deals

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Microscopic domain

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Match the Column I (physical quantities) with Column II (scale) and select the correct option from the codes given below. Column I Column II A. Size of electron or proton P. `10^(-30) kg` B. Mass of an electron q. `10^(-14) m` C. Extent of universe r. `10^(26) m`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

The quantity having the same unit in all system of unit

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

The density of a material in SI units is `128 kg m^(-3)` . In certain units in which the unit of length is 25 cm and the unit of mass is 50 g, the numerical value of density of the material

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Calculate the mean percentage error in five observations, `80.0, 80.5, 81.0, 81.5 and

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

The density of a material in CGS system is `10 g cm^(-3)`. If unit of length becomes 10 cm and unit of mass becomes 100 g, the new value of density will

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Assertion: Parallax method is used for measuring distances of nearby stars only. Reason: With increase in the distance of star from earth, the parallactic angle becomes too small to be measured

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

The coordinates of object with respect to a frame of reference at `t = 0` s are `(- 1, 0, 3)`. If `t = 5 s`, its coordinates are `(- 1, 0, 4),` then the object is

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

An object is moving along the path OABO with constant speed,

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Match the Column I (position-time graph) with Column II (representation) and select the correct option from the codes given

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Average Speed and Average Velocity-When an object is in motion, its position changes with time. So, the quantity that describes how fast is the position changing w.r.t. time and in what direction is given by average velocity.It is defined as the change in position or displacement `(Deltax)` divided by the time interval `(Delta t)` in which that displacement occur. However, the quantity used to describe the rate of motion over the actual path, is average speed. It defined as the total distance travelled by the object divided by the total time taken.Average speed of a car between points A and

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Consider a vector A that lies in `xy`-plane. If `A_x and A_y` are the magnitudes of its `x and y`-components respectively, then the correct representation of A can be given

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Assertion: Magnitude of resultant of two vectors may be less than the magnitude of either vector. Reason: Vector addition is

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A shell of mass 200 g is fired by a gun of mass 100 kg. If the muzzle speed of the shell is 80 m/s, calculate the recoil speed of the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

Hot questions

Categories