Questions

Heat is supplied at constant pressure to diatomic gas. The part of this heat that goes

Heat is supplied at constant pressure to diatomic gas. The part of this heat that goes to increase its internal…

Two masses of 9 g and 6 g are connected with a string which is passing over a frictionless

Two masses of 9 g and 6 g are connected with a string which is passing over a frictionless pulley.…

If a body travels half the distance with velocity v1 and the next half with velocity v2

If a body travels half the distance with velocity v1 and the next half with velocity v2, its average velocity…

Element ²³⁴U has 92 protons and 234 nucleons in its nucleus. It decays by

Element ²³⁴U has 92 protons and 234 nucleons in its nucleus. It decays by emitting an alpha particle. After the…

The total energy of an electron in the first excited state of hydrogen atom

The total energy of an electron in the first excited state of hydrogen atom is about -3.4 eV. Its kinetic…

If alternating source of primary coil on transformer is replaced by a Laclanche cell

If alternating source of primary coil on transformer is replaced by a Laclanche cell, the induced e.m.f in secondary coil…

A perfect gas at 27° C is heated at constant pressure to 327° C. If original volume of gas

A perfect gas at 27° C is heated at constant pressure to 327° C. If original volume of gas at…

In a circuit, 5% of total current passes through a galvanometer. If resistance

In a circuit, 5% of total current passes through a galvanometer. If resistance of the galvanometer is G, the value…

A point source is kept at a distnace 1000m has an illumination I. To change the illumination

A point source is kept at a distnace 1000m has an illumination I. To change the illumination to 16I, the…

The excess pressure inside one soap bubble is three times that inside a second soap bubble

The excess pressure inside one soap bubble is three times that inside a second soap bubble, then the ratio of…