PART - 1 CH - 2 Motion in a Straight Line — Physics STD 11 Science — Question

The ratio of frequencies of two pendulums are 2 : 3, then their lengths are in ratio of .

The pressure exerted by a liquid column depends only on the height of the liquid column and not on the shape of container. This is known as __________________.

Source of sound and observer are moving towards each other the observer will hear ______ frequency.

The errors which tend to occur in one direction, either positive or negative, are called _______.

Dynamic lift is related to _________________.

The ratio of the mean absolute error to the true value of the measured quantity is called __________.

Time-displacement graph is a straight line parallel to the time axis. The values of velocity and acceleration will be ................ .

SONAR works on the principle of ______.

The value of escape velocity for the Moon is................

SI unit of molar specific heat is ____________.