a) False
Despite being a scalar quantity, energy is not conserved in inelastic collisions.
b) False
Despite being a scalar quantity, temperature can take negative values.
c) False
Total path length is a scalar quantity. Yet it has the dimension of length.
d) False
A scalar quantity such as gravitational potential can vary from one point to another in space.
e) True
The value of a scalar does not vary for observers with different orientations of axes.
Give reasons for the following.
(i) King Tut’s body has been subjected to repeated scrutiny.
(ii) Howard Carter’s investigation was resented.
(iii) Carter had to chisel away the solidified resins to raise the king’s remains.
(iv) Tut’s body was buried along with gilded treasures.
(v) The boy king changed his name from Tutankhaten to Tutankhamun.
Find the mean deviation about the median for the data
xi | 15 | 21 | 27 | 30 | 35 |
fi | 3 | 5 | 6 | 7 | 8 |