Which of the following statements is/are correct for a fr...
Which of the following statements is/are correct for a freely falling body?
I. the total is entirely kinetic
II. the ratio of potential energy to kinetic energy is constant
III. the sum of potential and kinetic energy is constant
I only
II only
III only
I & III only
Correct answer is C
- the total energy at any point is a combination of the P.E and K.E
- the sum of PE and KE at any point is always constant not the ratio of P.E to K.E
The volume of 0.354g of helium at 273°C and 114cmhg of mercury pressure is 2667cm\(^3\). Calcula...
Which of the units of the following physical quantities are derived? I. Area II. Thrust III. Pr...
If a sound wave goes from a cold air region to a hot air region, its wavelength will? ...
Which of the following is NOT an example of elementary modern physics? ...