Statement I :
I. Hard water does not give lather with soap.
Statement II :
II. Calcium and magnesium salts present in hard water form precipitate with soap.

Statement I :
I. Intellectual criteria which informed the reform movements are rationalism and religious universalism.
Statement II :
II. Social relevance was not judged by a rationalist critique.

Statement I :
I. The Russian Revolution of 1917 inspired the Indian working class movement.
Statement II :
II. The Non-Cooperation Movement (1921-22) saw the involvement of the Indian working class.

Statement I :
I. Insolation is greatest when the sun is directly overhead and the sun’s rays are vertical.
Statement II :
II. When the sun is lower in the sky, the same amount of solar energy spreads over a greater area of ground surface, so insolation is lower

The displacement of a particle at time t is given by

where a, b and c are positive constants. Then the particle is

A particle is moving freely. Then its