Physics-
General
Easy
Question
The circular divisions of shown screw gauge are 
. It moves 
on main scale in one rotation. The diameter of the ball is
- 2.25 mm
- 2.20 mm
- 1.20 mm
- 1.25 mm
The correct answer is: 1.20 mm
Zero error 
Actual measurement 
Related Questions to study
physics-
A rod of a paramagnetic substance is placed in a non-uniform magnetic field. Which of the following figure shows its alignment in the field ?
A rod of a paramagnetic substance is placed in a non-uniform magnetic field. Which of the following figure shows its alignment in the field ?
physics-General
physics-
The SI unit of gravitational potential is
The SI unit of gravitational potential is
physics-General
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An electron in the ground state of hydrogen atom is revolving in anticlockwise direction in the circular orbit of radius R The atom is placed in a uniform magnetic induction B such that the plane normal of electron orbit makes an angle 30
with B, as shown in figure. The torque experienced by electron will be
An electron in the ground state of hydrogen atom is revolving in anticlockwise direction in the circular orbit of radius R The atom is placed in a uniform magnetic induction B such that the plane normal of electron orbit makes an angle 30 with B, as shown in figure. The torque experienced by electron will be
physics-General
physics-
Which of the following is not a unit of energy
Which of the following is not a unit of energy
physics-General
physics-
A physical quantity 
is given by 
The quantity which brings in the maximum percentage error in 
is
A physical quantity is given by The quantity which brings in the maximum percentage error in is
physics-General
physics-
Unit of power is
Unit of power is
physics-General
physics-
Kilowatt-hour is a unit of
Kilowatt-hour is a unit of
physics-General
physics-
Students I, II and III perform an experiment for measuring the acceleration due to gravity 
using a simple pendulum. They use different lengths of the pendulum and/or record time for different number of oscillations. The observations are shown in the table
Least count for length 
Least count for time 
If 
and 
are the percentage errors in 
for students I, II and III, respectively
Students I, II and III perform an experiment for measuring the acceleration due to gravity using a simple pendulum. They use different lengths of the pendulum and/or record time for different number of oscillations. The observations are shown in the table
Least count for length
Least count for time
If and are the percentage errors in for students I, II and III, respectively
physics-General
physics-
The unit of e.m.f is
The unit of e.m.f is
physics-General
chemistry-
The correct relationship between free energy change in a reaction and the corresponding equilibrium constant KC is
The correct relationship between free energy change in a reaction and the corresponding equilibrium constant KC is
chemistry-General
chemistry-
The relationship between free energy and electrode potential is
The relationship between free energy and electrode potential is
chemistry-General
chemistry-
For a spontaneous reaction the 
G , equilibrium constant (K) and 
will be respectively
For a spontaneous reaction the G , equilibrium constant (K) and will be respectively
chemistry-General
chemistry-
For a cell reaction, 
of an electro chemical cell, the change in standard free energy, G0 at a given temperature is
For a cell reaction, of an electro chemical cell, the change in standard free energy, G0 at a given temperature is
chemistry-General
chemistry-
For the electrochemical cell, 
and 
From this data, one can deduce that :
For the electrochemical cell, and From this data, one can deduce that :
chemistry-General
chemistry-
E° for 
is –0.44 V ; E° for 
is –0.76 V Then
E° for is –0.44 V ; E° for is –0.76 V Then
chemistry-General
