Questions

A body has 80 microcoulomb of charge. Number of additional electrons in it will be

A body has 80 microcoulomb of charge. Number of additional electrons in it will be Options (a) 8 x 10⁵…

A tyre filled with air (27° C and 2 atm) bursts. The temperature of air is (ˠ=1.5)

A tyre filled with air (27° C and 2 atm) bursts. The temperature of air is (ˠ=1.5) Options (a) -33°…

The transverse nature of electromagnetic waves is proved by which of the following?

The transverse nature of electromagnetic waves is proved by which of the following? Options (a) Interference phenomena (b) Diffraction phenomena…

If the value of potential in an A.C circuit is 10 V, the peak value of potential is

If the value of potential in an A.C circuit is 10 V, the peak value of potential is Options (a)…

If ₉₂U²³⁸ undergoes successively 8 ∝-decays and 6 β-decays, the resulting nucleus is

If ₉₂U²³⁸ undergoes successively 8 ∝-decays and 6 β-decays, the resulting nucleus is Options (a) ₉₂U²⁰⁸ (b) ₉₂Pb²⁰⁶ (c) ₉₂U²¹⁰…

The energy released in the fission of 1 kg of ₉₂U²³⁵ is (energy per fission = 200 MeV)

The energy released in the fission of 1 kg of ₉₂U²³⁵ is (energy per fission = 200 MeV) Options (a)…

Energy stored in the coil of a self inductance 40 mH carrying a steady current of 2A

Energy stored in the coil of a self inductance 40 mH carrying a steady current of 2A is Options (a)…

A particle falls towards earth from infinity. Its velocity on reaching the earth

A particle falls towards earth from infinity. Its velocity on reaching the earth would be Options (a) infinity (b) √(2gR)…

The potential energy of a weightless spring compressed by a distance D is proportional

The potential energy of a weightless spring compressed by a distance D is proportional to Options (a) D (b) D⁰…

The innermost orbit of hydrogen atom has a diameter 1.06Å. The diameter of tenth

The innermost orbit of hydrogen atom has a diameter 1.06Å. The diameter of tenth orbit is Options (a) 5.3 Å…