Need of unit for measurement - class-IX
Description: need of unit for measurement | |
Number of Questions: 37 | |
Created by: Muni Gupte | |
Tags: measurement of physical quantities physics measurements and experimentation |
Which of the following does not has fundamental unit?
The wavelength of light is usually expressed in
Which of the following is the largest unit of length?
In a tug-of-war between the teams A and B, the rope breaks at a point which is nearer to A. Then
The gravitational unit of force in the metric system is
The amount of energy emitted per unit time is called _______ .
The unit of power is
The correct relation is -
Weight of a body is measured by a
The SI unit of weight is
Which one of the following is not a unit of British system of units?
The dimensions of the quantities in one (or more) of the following pairs are the same. Identify the pair(s).
1 Me V$=$
As compared to cumulative average-time learning model, learning model which predicts more cumulative total time to produce more units is known as ____________.
The unit of universal gas constant is
The SI unit of amplitude of oscillation is
The wavelength of light is expressed in
State whether given statement is True or False.
The SI unit of mass is milligram.
If the displacement, velocity and acceleration of a particle at time t be x, v and f respectively, then which one is true?
A __________ unit does not change with respect to space and time.
Which of the following pairs has not the same dimension?
The force F is given in terms of time t and displacement x by the equation F = A cosBx + C sin Dt. The dimensional formula of D/B is______
Which of the following conversions is correct?
The CGS unit of power is $erg\ s^{-1}$
The ratio of the C.G.S unit of pressure to the S.I unit of pressure is 10.
The ratio of S.I. unit of thrust to the C.G.S unit of force is $10^5 : 1$
The MKS unit of force is N.
Dynes $cm^{-2}$ is the CGS unit of pressure.
Find the SI unit of the following derived quantities :
The C.G.S unit of speed is:
Which system of units has been taken as standard?
MKS system means
Units of Planck's constant in CGS system are:
If force (F), work (W) and velocity (V) are taken as fundamental quantities then the dimensional formula of time (T) is
The ratio of SI unit to CGS unit of G is
Which of the following represents the magnitude of a temperature correctly?
1 Newton $=$