Calculate the length of a seconds pendulum at a place, where g = 9.8ms-2 ?
0.994m
0.96m
1m
0.87m
Pick out the correct expression for time period.
The maximum displacement of the bob from its mean position on either side is called
amplitude
frequency
time period
effective length
Which part of screw gauge is used to mark circular scale?
Thimble
Ratchet
Sleeve
Main scale
Which of the following is not a part of stop watch?
Knob
Ring
Minute hand
Which of the following is not a vector quantity?
Dipole moment
Magnetic field
Temperature gradient
Temperature
In an instrument, there are 25 divisions on the veiner scale which coincide with 24 divisions of the main scale 1cm on main scale is divided in 20 equal parts. What is the least count?
0.001cm
0.002cm
0.003cm
0.004cm
Which of the following is a scalar quantity?
Displacement
Velocity
Electrified
Mass
SI unit of volume
litre
m3
cm2
J
The quantity of matter it contains is called
volume
density
mass
power
