Questions

Calculate the time period (in seconds) of a sound wave of wavelength 5m travelling with a speed of 500 m/s.

Who has the distinction of serving as the Chief Justice of India, President and the Vice president?

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of thefour alternatives.

Teachers ____________ the country require proper training at the appropriate time in their careers. On account of the unique occupational dynamic, together _________the constant pressure to address the growing expectations of society and the ______________ of teaching pedagogy, teachers need to be engaged in continual re-examination of their role. This cannot be achieved unless they incorporate the subjects as varied ________ applied ethics, human psychology, spirituality, ____________values, peace studies, and organisational behaviour.

dynamic, together _________ the constant pressure

An element has an atomic weight of W and an atomic number of N. The number of protons in the nucleus of its atom is

One should use porcelain and not metal containers in a microwave oven because..

Alkali metals are assigned which group in the Modern Periodic Table?

Which one of the following elements has the lowest atomic mass?

Which of the following represents the CORRECT scheme of sub-groups at various levels in classification?