KA2008

The charges Q, +q, and +q are placed at the vartices of an equilateral

The charges Q, +q, and +q are placed at the vartices of an equilateral triangle of side l. If the…

If an electron and a proton have the same de-Broglie wavelength, then the kinetic

If an electron and a proton have the same de-Broglie wavelength, then the kinetic energy of the electron is Options…

The maximum kinetic energy of emitted electrons in a photoelectric effect

The maximum kinetic energy of emitted electrons in a photoelectric effect does not depend upon Options (a) Intensity (b) Work…

When a piece of metal is illuminated by a monochromatic light of wavelength λ,

When a piece of metal is illuminated by a monochromatic light of wavelength λ, then stopping potential is 3Vs. When…

The most stable particle in Baryon group is

The most stable particle in Baryon group is Options (a) Proton (b) Lamda-particle (c) Neutron (d) Omega-particle Correct Answer: Proton…

On bombarding U²³⁵ by slow neutron, 200 MeV energy is released. If the power output

On bombarding U²³⁵ by slow neutron, 200 MeV energy is released. If the power output of atomic reactor is 1.6…

The ratio of the nuclear radii of elements with mass numbers 216 and 125 is

The ratio of the nuclear radii of elements with mass numbers 216 and 125 is Options (a) (6:5) (b) √216:√125…

A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest

A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest its time period…

A body of mass 4 kg is accelerated upon by a constant force travels

A body of mass 4 kg is accelerated upon by a constant force travels a distance of 5 m in…

A certain current on passing through a galvanometer produces a deflection

A certain current on passing through a galvanometer produces a deflection of 100 divisions. When a shunt of one ohm…