At what distance from the centre of earth, the value of acceleration due to gravity
At what distance from the centre of earth, the value of acceleration due to gravity will be half that on…
8 years ago
Questions
A rocket with a lift-off mass 3.5 x 10⁴ kg is blasted upwards with an initial acceleration
A rocket with a lift-off mass 3.5 x 10⁴ kg is blasted upwards with an initial acceleration of 10 m/s².…
8 years ago
In an LCR series A.C circuit, the voltage across each of the components, L, C and R is 50V
In an LCR series A.C circuit, the voltage across each of the components, L, C and R is 50V. The…
8 years ago
The radius of gyration of a solid sphere of radius r about a certain axis is r
The radius of gyration of a solid sphere of radius r about a certain axis is r. The distance of…
8 years ago
The de-Broglie wavelength of a proton(charge = 1.6 x 10⁻¹⁹ C, Mass = 1.6 x 10⁻²⁷ kg)
The de-Broglie wavelength of a proton(charge = 1.6 x 10⁻¹⁹ C, Mass = 1.6 x 10⁻²⁷ kg) accelerated through a…
8 years ago
The escape velocity from the earth is Ve. The escape velocity from a planet
The escape velocity from the earth is Ve. The escape velocity from a planet whose radius is 4 times and…
8 years ago
A coil of 40 henry inductance is connected in series with a resistance of 8 ohm
A coil of 40 henry inductance is connected in series with a resistance of 8 ohm and of a 2…
8 years ago
If a star converts all helium in its core to oxygen, then energy released per oxygen
If a star converts all helium in its core to oxygen, then energy released per oxygen nuclei is(Mass of He=4.0026…
8 years ago
A carnot’s engine operates with source at 127° C and sink at 27°C
A carnot's engine operates with source at 127° C and sink at 27° C. If the source supplies 40 kJ…
8 years ago
A man measures time period of a pendulum(T) in stationary lift. If the lift moves upwards
A man measures time period of a pendulum(T) in stationary lift. If the lift moves upwards with acceleration g/4, then…
8 years ago