The total number of ions present in 111 g of CaCl2 is

According to Einstein’s theory, mass and energy are related as

Which is the strongest fundamental force of nature?

Which of these were not major technological advances during industrial revolution in England and Europe?

On which laws, is the principle of rocket propulsion based

The word Science originates from the Latin verb Scientia meaning

(A’)’ = ?

In a class of 120 students numbered 1 to 120, all even numbered students opt for Physics, whose numbers are divisible by 5 opt for Chemistry and those whose numbers are divisible by 7 opt for Math. How many opt for none of the three subjects?

Approximate atomic weight of an element is 26.89. If its equivalent weight is 8.9, the exact atomic weight of element would be

The -ve charged particles is called

What is the normality of a 1 M solution of H3PO4

Wave picture of light failed to explain.

Which of the following is a possible first step in applying the scientific method

In a system of units if force (F), acceleration (A) and time (T) are taken as fundamentals units then the dimensional formula of energy is

The dimensions of kinetic energy is same as that of

Electron volt is a unit of